Relevant bibliographies by topics / Collaboratively coded multiple access

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Collaboratively coded multiple access'

Author: Grafiati
Published: 4 June 2021
Last updated: 14 February 2022

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Journal articles on the topic "Collaboratively coded multiple access"

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Donkers, Sarah J., Sarah Oosman, Stephan Milosavljevic, and Kristin E. Musselman. "Addressing Physical Activity Behavior in Multiple Sclerosis Management." International Journal of MS Care 22, no. 4 (2019): 178–86. http://dx.doi.org/10.7224/1537-2073.2019-029.

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Abstract Background: Although physical activity (PA) is considered the most important nonpharmaceutical intervention for persons with multiple sclerosis (MS), less than 20% of people with MS are engaging in sufficient amounts to accrue benefits. Promotion of PA is most effective when combined with additional behavior change strategies, but this is not routinely done in clinical practice. This study aimed to increase our understanding of current practice and perspectives of health care providers (HCPs) in Canada regarding their use of interventions to address PA behavior in MS management. Investigating HCPs’ perspectives on implementing PA behavior change with persons with MS will provide insight into this knowledge-to-practice gap. Methods: Semistructured focus groups were conducted with 31 HCPs working with persons with MS in Saskatchewan, Canada. Based on interpretive description, data were coded individually by three researchers, who then collaboratively developed themes. Analysis was inductive and iterative; triangulation and member reflections were used. Results: Five themes were established: 1) prescribing, promoting, and impacting wellness with PA; 2) coordinating communication and continuity in practice; 3) timely access to relevant care: being proactive rather than reactive; 4) enhancing programming and community-based resources; and 5) reconciling the value of PA with clinical practice. Conclusions: The HCPs value PA and want more support with application of behavior change strategies to deliver PA behavioral interventions, but due to the acute and reactive nature of health care systems they feel this cannot be prioritized in practice. Individual- and system-level changes are needed to support consistent and effective use of PA behavioral interventions in MS.
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Lu, Lu, Lizhao You, and Soung Chang Liew. "Network-Coded Multiple Access." IEEE Transactions on Mobile Computing 13, no. 12 (2014): 2853–69. http://dx.doi.org/10.1109/tmc.2014.2316804.

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Dai, Jincheng, Kai Niu, Zhongwei Si, Chao Dong, and Jiaru Lin. "Polar-Coded Non-Orthogonal Multiple Access." IEEE Transactions on Signal Processing 66, no. 5 (2018): 1374–89. http://dx.doi.org/10.1109/tsp.2017.2786273.

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Zou, Xun, Mehdi Ganji, and Hamid Jafarkhani. "Trellis-Coded Non-Orthogonal Multiple Access." IEEE Wireless Communications Letters 9, no. 4 (2020): 538–42. http://dx.doi.org/10.1109/lwc.2019.2961899.

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Ma, Guoyu, Bo Ai, Fanggang Wang, and Zhangdui Zhong. "Tandem Spreading Network-Coded Division Multiple Access." IEEE Transactions on Industrial Informatics 13, no. 1 (2017): 390–98. http://dx.doi.org/10.1109/tii.2016.2618346.

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Zhao, Ming, Shengli Zhou, Wuyang Zhou, and Jinkang Zhu. "An Improved Uplink Sparse Coded Multiple Access." IEEE Communications Letters 21, no. 1 (2017): 176–79. http://dx.doi.org/10.1109/lcomm.2016.2613934.

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Chen, Pingping, Long Shi, Liting Guo, Zhifeng Chen, and Linhuang Wu. "An Improved Network-Coded Multiple Access for Power-Balanced Non-Orthogonal Multiple Access." IEEE Access 6 (2018): 74180–89. http://dx.doi.org/10.1109/access.2018.2883576.

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Hankemeier, Dorice A., and Bonnie L. Van Lunen. "Perceptions of Approved Clinical Instructors: Barriers in the Implementation of Evidence-Based Practice." Journal of Athletic Training 48, no. 3 (2013): 382–93. http://dx.doi.org/10.4085/1062-6050-48.1.18.

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Context: As evidence-based practice (EBP) becomes prevalent in athletic training education, the barriers that Approved Clinical Instructors (ACIs) experience in implementing it with students need to be understood. Objective: To investigate barriers ACIs face when implementing EBP concepts in clinical practice and in teaching EBP to professional athletic training students and to investigate the educational emphases to improve the barriers. Design: Qualitative study. Setting: Telephone interviews. Patients or Other Participants: Sixteen ACIs (11 men, 5 women; experience as an athletic trainer = 10 ± 4.7 years, experience as an ACI = 6.81 ± 3.9 years) were interviewed. Data Collection and Analysis: We interviewed each participant by telephone. Interview data were analyzed and coded for common themes and subthemes regarding barriers and educational emphases. Themes were triangulated through multiple-analyst triangulation and interpretive verification. Results: Barriers to EBP incorporation and educational emphasis placed on EBP were the main themes reported. Resources, personnel, and student characteristics were subthemes identified as barriers. Resource barriers included time, equipment, access to current literature, and knowledge. Coworkers, clinicians, and coaches who were unwilling to accept evidence regarding advancements in treatment were identified as personnel barriers. Programmatic improvement and communication improvement were subthemes of the educational emphasis placed on EBP theme. The ACIs reported the need for better integration between the clinical setting and the classroom and expressed the need for EBP to be integrated throughout the athletic training education program. Conclusions: Integration of the classroom and clinical experience is important in advancing ACIs' use of EBP with their students. Collaborative efforts within the clinical and academic program could help address the barriers ACIs face when implementing EBP. This collaboration could positively affect the ability of ACIs to implement EBP within their clinical practices.
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Mheich, Zeina, Zilong Liu, Pei Xiao, and Amine Maaref. "Delayed Bit Interleaved Coded Sparse Code Multiple Access." IEEE Transactions on Vehicular Technology 69, no. 7 (2020): 8018–22. http://dx.doi.org/10.1109/tvt.2020.2993900.

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Pan, Haoyuan, Lu Lu, and Soung Chang Liew. "Network-Coded Multiple Access with High-Order Modulations." IEEE Transactions on Vehicular Technology 66, no. 11 (2017): 9776–92. http://dx.doi.org/10.1109/tvt.2017.2718522.

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Dissertations / Theses on the topic "Collaboratively coded multiple access"

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Brown, Kevin L. "Code and sequence design for adaptive combined CCMA CDMA multimedia networks." Thesis, University of Leeds, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.275665.

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Seow, Tian Beng. "Circular antenna array applications in coded DS-CDMA mobile communication systems /." Thesis, Monterey, Calif. : Springfield, Va. : Naval Postgraduate School ; Available from National Technical Information Service, 2003. http://library.nps.navy.mil/uhtbin/hyperion-image/03Mar%5FSeow.pdf.

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Ni, Jian. "Connectivity, dynamic performance of random radio networks & state independent uniquely decodable codes, codeword synchronisation of collaborative coding multiple access communications." Thesis, University of Warwick, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.282534.

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Reed, Mark C. "Iterative receiver techniques for coded multiple access communication systems." 1999. http://arrow.unisa.edu.au:8081/1959.8/24962.

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The introduction of cellular wireless systems in the 1980s has resulted in a huge demand for personal communication services. This demand has made larger capacity systems necessary. This has been partially satisfied by the introduction of second generation digital systems. New third generation systems are now under going standardisation and will require even more efficient utilisation of the spectrum if the high bandwidth features and larger capacity are to become a reality. Motivated by these growing requirements we discuss methods of achieving large improvements in spectral efficiency and performance. Multiple-user communications over a channel can only be achieved with some form of diversity. In this work we point out that the efficient utilisation of the dimensions of space, time, and frequency will ultimately maximise the system capacity of a multiple-user system. We apply our receiver techniques solely to the base-station design where capacity limitations are currently present. We note however, that some of these techniques could also be applied at the mobile terminal receiver. We primarily focus our attention on the direct-sequence code-division multiple-access (DS/CDMA) channel, since this channel is inherently interference limited by other users in the cell of interest. We exploit a new powerful channel coding technique named " turbo coding" for its iterative decoding approach. We show how we can substitute the inner convolutional code of a turbo code encoder with the CDMA channel. By " iterative detection/decoding" or " turbo equalisation" at the receiver we achieve performance results which show the interference from other users to approach complete removal. We develop and analyse a new, low complexity, iterative interference canceller/decoder. This receiver has complexity per user linear with the memory of the channel and independent of the number of users in the system. We extend this receiver to more realistic channels that are asynchronous and include multi-path, and include spatial diversity by using an antenna array at the receiver. The CDMA channel we study exclusively uses randomly generated spreading codes. With this channel model we still achieve single user performance (no interference from other users) with a 10logL gain from L antenna elements and a gain of up to 10logP from P multi-path components. With any new receiver design, sensitivity to channel parameter errors is of paramount interest. We find that the sensitivity of our receiver is low with respect to the parameter errors induced. This is as we desire for a realisable receiver design. Finally we investigate the application of this new iterative interference canceller/decoder receiver to a number of other interference channels. These include the intersymbol interference (ISI) channel, partial response signalling (PRS), and continuous phase modulation (CPM). For these channels excellent performance improvement is generally achieved by the utilisation of the iterative interference canceller/decoder solution.<br>Thesis (PhD)--University of South Australia, 1999
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Lu, Shao-Jung, and 呂邵蓉. "Voting-based UE Detection Methods for Sparse Coded Multiple Access." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/2tuj33.

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碩士<br>國立交通大學<br>電信工程研究所<br>107<br>The non-orthogonal multiple access (NOMA) technique can theoretically achieve a better throughput than the conventional orthogonal multiple access (OMA) technique and hence has been considered as a basic multiple access technique in the 5G standard. Along this trend, we consider a code-domain NOMA system in this thesis, which is referred to as the sparse code multiple access (SCMA). The SCMA adopts a multi-dimensional codebook-based non-orthogonal spreading technique and can use the iterative message passing algorithm (MPA) to recover the data stream at the receiver. Under the SCMA framework, this thesis focuses on user equipment (UE) detection in the uplink grant-free SCMA scenario and proposed three voting-based strategies as well as a joint message passing algorithm (JMPA) enhancement for UE detection. Based on the generalized likelihood ratio test (GLRT), our simulation results show that the proposed voting strategies are capable of effectively detecting the statuses of UEs from either activeness or inactiveness, and can provide an accurate active UE list to the MPA decoder.
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Chih-YuChang and 張志予. "Complementary Coded Scrambling Multiple Access MIMO Systems and Its Performance Analysis." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/79417882844279982781.

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碩士<br>國立成功大學<br>工程科學系碩博士班<br>101<br>In this thesis, we focus the research topic on the codes of complementary coded scrambling multiple access (CCSMA) systems. In the previous research of complementary coded scrambling multiple access systems, we found out a proper method to combine the scramble technique with complementary codes. Without using spread spectrum technique, complementary coded scrambling multiple access systems can really increase frequency bandwidth efficiency of a communication system. In addition, pervious work also shown that complementary coded scrambling multiple access systems can work pretty well when the transmission environment are in an indoor or outdoor to indoor environments, which are both frequency selective fading channels. But, in the outdoor environment, system performance decreases, obviously. It is all related to the ability of complementary coded scrambling multiple access system codes against multipath effect. Ability of complementary coded scrambling multiple access system codes against multipath effect is related to the number of transmit antennas. More transmit antennas we have, the more multipath delay spread CCSMA systems can hold. But, it is a big problem. Because we are not able to have too many transmit antennas and the wireless channel condition is too unpredictable and variable in practice, we can not avoid the happening of delay taps are bigger than the number of transmit antennas, which will decrease CCSMA system performance. Based on the previous researches, we purpose a new code structure to enhance the ability of CCSMA systems against multipath effect. Making this ability of CCSMA code is not totally decided by the transmit antenna number, and we will not use extra bandwidth comparing with. We called the CCSMA system that uses new code structure generalized complementary coded scrambling multiple access system because the new code structure afford CCSMA system to choose different codes against various wireless channel conditions. That is way we called it generalized. In the following article, we will introduce the generalized CCSMA codes and prove it still is theoretically MI and MAI free. Then, we evaluate the numerical analysis and show the results of GCCSMA system when it compares to CCSMA system under multiple environments. Numerical analysis results show that GCCSMA systems can really work better than CCSMA systems in all test environments. At last, we also generate the generalized CCSMA codes in appendix with different transmission environments.
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Tjahjadi, Aldo. "Turbo-coded OCC-CDMA with spatial diversity for wireless mobile communications." Thesis, 2002. http://hdl.handle.net/1957/31498.

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Turbo codes have been used successfully for error correction in digital communications, however, their application to wireless mobile communications is still a fresh research topic. The objective of this thesis is to present a new solution that involves the usage of turbo codes, spatial diversity, and orthogonal complementary codes in a CDMA spread spectrum system in order to deliver good performance in a fading environment at low signal-to-noise ratios. The results of the research that was performed to write this thesis are presented in a modular and progressive fashion. That is, the design of a basic turbo-coded system in additive white Gaussian noise (AWGN) is developed first in order to get a good understanding of its potential in a wireless communication environment. Then the basic system design is expanded to include fading channel characteristics and multiple access spread spectrum capabilities using classical code division multiple access (CDMA) techniques. Finally, orthogonal complementary codes are used in lieu of traditional spreading codes and spatial diversity is introduced to maximize system performance.<br>Graduation date: 2003
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Hong-MingSyu and 許宏銘. "Complementary-Coded Scrambling Multiple Access (CCSMA)and Its Application in MIMO Systems." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/25144671344060644188.

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碩士<br>國立成功大學<br>工程科學系碩博士班<br>100<br>We present a new type of complementary CDMA (code division multiple access) technology called complementary-coded scrambling multiple access (CCSMA) technology. The CCSMA system combines complementary CDMA technology, MIMO(multiple-input-multiple-output) technology and scrambling technique successfully. By utilizing complementary CDMA technology, the CCSMA system has ability to reject MI (multi-path interference) and MAI (multiple access interference). By using scrambling technology, the CCSMA system gets better frequency efficiency than SS (spread-spectrum) complementary CDMA systems do. By utilizing scrambling technique and space domain complementary coding to facilitate MIMO application the CCSMA system can reduce spectrum consumption. Comparing to previous works in complementary CDMA research area, the design of the MIMO-CCSMA system overcomes some drawbacks. First, the MIMO-CCSMA system uses channel characteristics to separate each antenna and improve the bandwidth efficency that we can say it is real MIMO complementary CDMA system. Conventional MIMO-SS complementary CDMA systems use code to separate different transmit antennas. As the signal sent by multiple antennas can be separated. Conventional MIMO-SS complementary CDMA systems can perform multiplexing transmission or diversity combining but the spectrum requirement is increased. This idea is actually not the main goal for utilizing MIMO technology that MIMO is utilized to reduce spectrum consumption. Second, the MIMO-CCSMA system utilizes scrambling technique and MIMO technology together to reduce spectrum consumption. Conventional MIMO-SS complementary CDMA systems use spread spectrum technique to perform interference rejection. SS technique consumes lot of bandwidth especially when data rate becomes higher. Third, it is not necessary for conventional complementary CDMA system to use MIMO antennas, because the signals sent by multiple antennas can be separated by complementary codes. It is still a question that if it is worth to apply MIMO to conventional MIMO-SS complementary CDMA system. In this thesis we introduce the MIMO-CCSMA code design and the MIMO-CCSMA system. We prove that the MIMO-CCSMA code can reject MI and MAI perfectly in an ideal condition and design the transmitter and receiver which are suitable for the MIMO-CCSMA system and finally show the numerical analysis of this system. With the performance results, we find the CCSMA system can possibly work in indoor environment with high data speed but support fewer users and the CCSMA can also work in outdoor environment with more users supported but a lower data rate for each user.
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Van, Niekerk Brett. "Blind iterative multiuser detection for error coded CDMA systems." Thesis, 2005. http://hdl.handle.net/10413/2781.

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Mobile communications have developed since the radio communications that were in use 50 years ago. With the advent of GSM, mobile communications was brought to the average citizen. More recently, COMA technology has provided the user with higher data rates and more reliable service, and it is apparent that it is the future of wireless communication. With the introduction of 3G technology in South Africa, it is becoming clear that it is the solution to the country's wireless communication requirements. The 3G and next-generation technologies could provide reliable communications to areas where it has proven difficult to operate and maintain communications effectively, such as rural locations. It is therefore important that the se technologies continue to be researched in order to enhance their capabilities to provide a solution to the wireless needs of the local and global community. Whilst COMA is proving to be a reliable communications technology, it is still susceptible to the effects of the near-far problem and multiple-access interference. A number of multiuser detectors have been proposed in literature that attempt to mitigate the effects of multiple-access interference. A notable detector is the blind MOE detector, which requires only the desired user 's spreading sequence , and it exhibits performance approximating that of other linear multiuser detectors. Another promising class of multiuser detector operate using an iterative principle and have a joint multiuser detection and error-correcting coding scheme. The aim of this research is to develop a blind iterative detector with FEC coding as a potential solution to the need for a detector that can mitigate the effects of interfering users operating on the channel. The proposed detector has the benefits of both the blind and iterative schemes: it only requires the knowledge of the desired user ' s signature, and it has integrated error-correcting abilities. The simulation results presented in this dissertation show that the proposed detector exhibits superior performance over the blind MOE detector for various channel conditions. An overview of spread-spectrum technologies is presented, and the operation of OS-COMA is described in more detail. A history and overview of existing COMA standards is also given . The need for multiuser detection is explained, and a description and comparison of various detection methods that have appeared in literature is given. An introduction to error coding is given , with convolutional code s, the turbo coding concept and method s of iterative detection are described in more detail and compared, as iterat ive decoding is fundamental to the operation of an iterative COMA detector. An overview of iterative multiuser detection is given , and selected iterative methods are described in more detail. A blind iterative detector is proposed and analysed. Simulation results for the propo sed detector, and a comparison to the blind MOE detector is presented, showing performance characteristics and the effects of various channel parameters on performance. From these results it can be seen that the proposed detector exhibits a superior performance compared to that of the blind MOE detector for various channel conditions. The dissertation is concluded, and possible future directions of research are given.<br>Thesis (M.Sc.Eng.)-University of KwaZulu-Natal, Durban, 2005.
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Nkouatchah, Telex Magloire Ngatched. "Performance of turbo-coded DS-CDMA systems in fading and burst channels." Thesis, 2001. http://hdl.handle.net/10413/8993.

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Turbo codes are a class of forward error correction (FEC) codes that offer energy efficiencies close to the limits predicted by information theory. The features of turbo codes include parallel code concatenation, recursive convolutional encoding, nonuniform interleaving, and an associated iterative decoding algorithm. The excellent performance of turbo codes explains why much of the current research is focused on applying turbo codes to different systems. This dissertation first outlines a new simple criterion for stopping the iterative process of the turbo decoder for each individual frame immediately after the bits are correctly estimated and thus prevents unnecessary computations and decoding delay. The dissertation then considers the performance of turbo coded DS-CDMA systems. The performance analysis begins with simulation results for turbo coded DS-CDMA over a multi-path Rayleigh fading channel. The channel is then modeled using the Gilbert-Elliott channel model and analytical expressions for the performance of the system are derived. The influence of various parameters such as the Doppler frequency, the signal-to-noise ratio threshold on the system performance are analyzed and investigated.<br>Thesis (M.Sc.Eng)-University of Natal, Durban, 2001.
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Books on the topic "Collaboratively coded multiple access"

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Ni, Jian. Connectivity, dynamic performance of random radio networks and state independent uniquely decodable codes: Codeword synchronisation of collaborative coding multiple access communications. typescript, 1994.

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Book chapters on the topic "Collaboratively coded multiple access"

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Osipov, Dmitry. "A Coded DHA FH OFDMA System with a Noncoherent ML Detector under Multitone Jamming." In Multiple Access Communications. Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-34976-8_4.

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Miller, Scott L. "Performance of Direct-Sequence Code-Division Multiple-Access Using Trellis-Coded Orthogonal Signalling." In Wireless Personal Communications. Springer US, 1994. http://dx.doi.org/10.1007/978-1-4615-2758-9_13.

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Roh, Jae-Sung, Choon-Gil Kim, and Sung-Joon Cho. "Performance Evaluation of Serial/Parallel Block Coded CDMA System with Complex Spreading in Near/Far Multiple-Access Interference and Multi-path Nakagami Fading Channel." In Lecture Notes in Computer Science. Springer Berlin Heidelberg, 2002. http://dx.doi.org/10.1007/3-540-36087-5_74.

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"Coded Modulation Assisted CodeDivision Multiple Access." In Quadrature Amplitude Modulation. IEEE, 2011. http://dx.doi.org/10.1109/9780470010594.ch27.

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Sang, Aimin, Guosen Yue, Xiaodong Wang, and Mohammad Madihian. "Cross-Layer Performance of Scheduling and Power Control Schemes in Space-Time Block Coded Downlink Packet Systems." In Handbook on Advancements in Smart Antenna Technologies for Wireless Networks. IGI Global, 2009. http://dx.doi.org/10.4018/978-1-59904-988-5.ch018.

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In this chapter, we consider a cellular downlink packet data system employing the space-time block coded (STBC) multiple- input-multiple-output (MIMO) scheme. Taking the CDMA high data rate (HDR) system for example, we evaluate the cross-layer performance of typical scheduling algorithms and a point-to-point power control scheme over a time division multiplexing (TDM)-based shared MIMO channel. Our evaluation focuses on the role of those schemes in multi-user diversity gain, and their impacts on medium access control (MAC) and physical layer performance metrics for delay-tolerant data services, such as throughput, fairness, and bit or frame error rate. The cross-layer evaluation shows that the multi-user diversity gain, which comes from opportunistic scheduling schemes exploiting independent channel oscillations among multiple users, can increase the aggregate throughput and reduce the transmission error rate. It also shows that STBC/MIMO and one-bit and multi-bit power control can indeed help the physical and MAC layer performance but only at a risk of limiting the multiuser diversity gain or the potential throughput of schedulers for delay-tolerant bursty data services.
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Kuruba, Padmaja, and A. V. Sutagundar. "Emerging Trends of Space-Based Wireless Sensor Network and Its Applications." In Advances in Wireless Technologies and Telecommunication. IGI Global, 2017. http://dx.doi.org/10.4018/978-1-5225-0501-3.ch002.

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There is a great demand in space and earth observations applications. Traditional satellite missions have complex design architecture involving high cost in design, operation, launch and maintenance. Thus single large satellite is replaced by multiple, small satellites with distributed network, collaboratively performing the same functionality of large satellite. This has been motivated researchers to explore the application of terrestrial Wireless Sensor Network (WSN) to space. The main objective of using space based WSN is to have full power of remote sensing capabilities at all the relevant time horizons and geographical scales with high performance and low cost. It also strives for an optimal solution that gratifies the standards, sizes, air interfaces, network architecture, access schemes, fault tolerance, operating system, hardware components of on-board diagnostics etc. This chapter discusses the characteristics and challenges of Space-Based Wireless Sensor Network (SWSN).
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Kuruba, Padmaja, and A. V. Sutagundar. "Emerging Trends of Space-Based Wireless Sensor Network and Its Applications." In Research Anthology on Reliability and Safety in Aviation Systems, Spacecraft, and Air Transport. IGI Global, 2021. http://dx.doi.org/10.4018/978-1-7998-5357-2.ch065.

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There is a great demand in space and earth observations applications. Traditional satellite missions have complex design architecture involving high cost in design, operation, launch and maintenance. Thus single large satellite is replaced by multiple, small satellites with distributed network, collaboratively performing the same functionality of large satellite. This has been motivated researchers to explore the application of terrestrial Wireless Sensor Network (WSN) to space. The main objective of using space based WSN is to have full power of remote sensing capabilities at all the relevant time horizons and geographical scales with high performance and low cost. It also strives for an optimal solution that gratifies the standards, sizes, air interfaces, network architecture, access schemes, fault tolerance, operating system, hardware components of on-board diagnostics etc. This chapter discusses the characteristics and challenges of Space-Based Wireless Sensor Network (SWSN).
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Yune, Tae-Won, Dae-Young Seol, Dongsik Kim, and Gi-Hong Im. "Single-Carrier Frequency Domain Equalization for Broadband Cooperative Communications." In Cooperative Communications for Improved Wireless Network Transmission. IGI Global, 2010. http://dx.doi.org/10.4018/978-1-60566-665-5.ch015.

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Cooperative diversity is an effective technique to combat the fading phenomena in wireless communications without additional complexity of multiple antennas. Multiple terminals in the network form a virtual antenna array in a distributed fashion. Even though each of them is equipped with only one antenna, spatial diversity gain can be achieved through cooperation. In this chapter, we discuss relay-assisted single carrier transmissions extending conventional transmit diversity schemes. We focus on distributed space-frequency block coded single carrier transmission, in order to operate over fast fading channels. A pilot design technique is also discussed for channel estimation of this single carrier cooperative system, which shows better channel tracking performance than conventional block-type channel estimations. In addition, spectral efficient cooperative diversity protocols are presented, where the users access a relay simultaneously or transmit superposed data blocks. Interference from the other user is effectively removed by using an iterative detection technique.
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Conference papers on the topic "Collaboratively coded multiple access"

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Eroz, Mustafa, and Lin-Nan Lee. "Scrambled Coded Multiple Access." In 2011 IEEE Vehicular Technology Conference (VTC Fall). IEEE, 2011. http://dx.doi.org/10.1109/vetecf.2011.6093091.

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Perotti, Alberto G., and Branislav M. Popovic. "Turbo Trellis Coded multiple access." In 2014 IEEE Globecom Workshops (GC Wkshps). IEEE, 2014. http://dx.doi.org/10.1109/glocomw.2014.7063544.

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Zhang, Zhaoyang, Shaolei Chen, and Kedi Wu. "Non-coded rateless multiple access." In 2012 International Conference on Wireless Communications & Signal Processing (WCSP 2012). IEEE, 2012. http://dx.doi.org/10.1109/wcsp.2012.6542951.

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Mi, Nanhuan, Xiaoxue Zhang, Xin He, et al. "CBMA: Coded-Backscatter Multiple Access." In 2019 IEEE 39th International Conference on Distributed Computing Systems (ICDCS). IEEE, 2019. http://dx.doi.org/10.1109/icdcs.2019.00084.

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Sun, Rong, and Jingwei Liu. "Distributed SR-LDPC Codes over Multiple-Access Relay Channel." In 2013 International Conference on Intelligent Networking and Collaborative Systems (INCoS). IEEE, 2013. http://dx.doi.org/10.1109/incos.2013.117.

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Perotti, Alberto G., and Branislav M. Popovic. "Enhanced trellis coded multiple access (ETCMA)." In 2014 IEEE Information Theory Workshop (ITW). IEEE, 2014. http://dx.doi.org/10.1109/itw.2014.6970876.

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Dai, Jincheng, Kai Niu, Zhongwei Si, and Jiaru Lin. "Polar coded non-orthogonal multiple access." In 2016 IEEE International Symposium on Information Theory (ISIT). IEEE, 2016. http://dx.doi.org/10.1109/isit.2016.7541447.

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Balsdon, Ryan, and Jacek Ilow. "Trellis-Coded Multiple-Access using chirp signalling." In 2010 4th International Conference on Signal Processing and Communication Systems (ICSPCS 2010). IEEE, 2010. http://dx.doi.org/10.1109/icspcs.2010.5709748.

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Pan, Haoyuan, Lu Lu, and Soung Chang Liew. "Multiuser rate-diverse network-coded multiple access." In 2017 IEEE International Symposium on Information Theory (ISIT). IEEE, 2017. http://dx.doi.org/10.1109/isit.2017.8006959.

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Lee, Lin-Nan, Mustafa Eroz, Neal Becker, et al. "Scrambled Coded Multiple Access, Variations and Improvements." In GLOBECOM 2018 - 2018 IEEE Global Communications Conference. IEEE, 2018. http://dx.doi.org/10.1109/glocom.2018.8647757.

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