Coded Cooperation in Wireless Communications: Space-Time Transmission and Iterative Decoding

Janani, M.; Hedayat, A.; Hunter, T.E.; Nosratinia, Aria

doi:10.1109/tsp.2003.821100

Cited by 711 publications

(422 citation statements)

References 23 publications

Supporting

Mentioning

419

Contrasting

Unclassified

Order By: Relevance

“…To guarantee the success of cooperation, only the cooperative node that correctly decodes the received signals will become an active cooperative node to participate in the cooperative transmission in the second phase. A simple manner to do this is to use an error detection code such as cyclic redundancy check (CRC) in the source [10]. In the beginning of the second phase, the eligible cooperative nodes re-map the decoded information bits into symbols.…”

Section: One-way Cooperative Networkmentioning

confidence: 99%

“…How to exploit the spatial benefits by wireless terminals with only single antenna becomes a natural question. Cooperative communications technology [7][8][9][10][11][12] may have provided an answer to this question.…”

mentioning

confidence: 99%

“…Since the early studies by Sendonaris et al [7] and Laneman et al [8], cooperative communications techniques have attracted tremendous interest over the recent years, both in academy and industry. Distributed space-time coding (DSTC), i.e., the distributed counterpart of space-time coding in co-located MIMO, has become an efficient technique to provide spatial diversity for cooperative communication systems [9][10][11][12]. On one hand, cooperation is embedded into cellular mobile communications system and new cooperative stations may be built in a cellular system [13]; on the other hand, cooperative communications technique is adopted in the physical layer of ad hoc networks and wireless sensor networks (WSN) [14,15].…”

mentioning

confidence: 99%

See 2 more Smart Citations

Asynchronous cooperative communication systems: A survey on signal designs

Wang

Xia

2011

Sci. China Inf. Sci.

View full text Add to dashboard Cite

Cooperative communications is a promising technique for future high speed wireless communications. These systems may be formulated as virtual multi-input multi-output (MIMO) systems where spatial/cooperetive diversity is a key advantage. However, different from MIMO systems, one of the major challenges for cooperative communications systems is that the cooperative transmissions in cooperative systems may be neither time nor frequency synchronized, since the transmissions are from multiple cooperative nodes at different locations. The existing signal designs for co-located MIMO systems may not be able to collect the cooperative diversity in cooperative communications systems. This paper gives an overview of recent research efforts on combating the time and frequency asynchronism of the cooperative communication network. We focus on the signal designs (or space-time codings/modulations) to achieve full cooperative diversity, and summarize some of the resent distributed space-timing coding and space-frequency coding techniques to combat timing errors and frequency offsets, and in the meantime to achieve full cooperative diversity, in both one-way and two-way cooperative networks.

show abstract

Section: One-way Cooperative Networkmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

See 1 more Smart Citation

Asynchronous cooperative communication systems: A survey on signal designs

Wang

Xia

2011

Sci. China Inf. Sci.

View full text Add to dashboard Cite

show abstract

“…Using this simple protocol a user still provides redundancy for its own without wasting resources by retransmitting erroneous data. CC can be easily combined with space-time coding schemes [12], which is discussed in detail in Section 2.3. A very informative tutorial on cooperative coding techniques is provided in reference [22] and detailed analyses of the common approaches are presented in references [11,14].…”

Section: Basic Cooperation Protocolsmentioning

confidence: 99%

Cooperative Wireless Networking Beyond Store-and-Forward

Valentin

Lichte

Karl

et al. 2007

Wireless Pers Commun

View full text Add to dashboard Cite

Abstract. In future wireless networks devices may cooperate to form logical links. Each of these links may consist of several independent physical channels which are shared by the cooperating partners. Even without multiple antennas this cooperation provides diversity in time and space. This so-called cooperation diversity increases the robustness of the link vs. fading and interference. After surveying approaches in cooperation diversity we focus on optimizing its performance by combining several cooperation schemes and by integrating cooperation into space-time coding. For multiple scenarios, we further discuss the factors and benefits introduced by user cooperation and how cooperation-aware resource allocation can be employed to further increase the performance of cooperative networks. When it comes to implementation, the question arises how cooperation can be integrated efficiently into existing wireless networks. A case study for 802.11-based WLANs reveals the issues that need to be solved in order to deploy cooperative techniques. We provide an overview of the state of the art in implementing cooperation approaches, analyze how appropriate these approaches solve the issues, and, where appropriate, point out their deficiencies. We conclude with a road map for future research necessary to tackle these deficiencies for the practical implementation of cooperation in next generation mesh, WLAN, WMAN, and cellular standards.

show abstract

“…Other MIMO techniques, such as space -time-coded cooperation (STCC) [13] and double space-time-coded cooperation [14] are also capable of providing substantial system performance benefits.…”

Section: Introductionmentioning

confidence: 99%

Amplify-forward and decode-forward cooperation relying on systematic Luby transform coded Hybrid Automatic-Repeat-reQuest

2011

View full text Add to dashboard Cite

Systematic Luby transform (SLT) codes constitute rateless codes, which are capable of adaptively adjusting their code rate depending on the channel quality without any explicit channel state information (CSI) at the transmitters. SLTs are also suitable for space time collaboration-aided relay networks. In this study, an iterative decoding-aided SLT scheme is combined with 16 quadrature amplitude modulation (QAM) transmission in a wireless relay-aided network. The bit error ratio (BER) results and extrinsic information transfer (EXIT) charts are provided to evaluate the performance of the proposed scheme. The simulation results show that the proposed scheme using amplify-and-forward (AF) relaying achieves a 2.5 dB gain at a BER of 10 25 , while the attainable improvement is nearly 6 dB for decode-and-forward (DF) relaying, compared to the noniterative detection scheme operating without the relay's assistance. Moreover, the AF relaying-aided SLT coded 16-QAM scheme is more beneficial, when the relay station is close to the source. By contrast, the DF relaying performs best near the mid-point between the source and the destination. Additionally, a modified Hybrid Automatic-Repeat-reQuest (HARQ) protocol using incremental redundancy is applied along with the SLT-coded 16-QAM scheme in order to enhance the achievable throughput and energy efficiency of cooperative networks. This arrangement reduces the total transmit power by about 5%, compared to the classic HARQ scheme.

show abstract

Coded Cooperation in Wireless Communications: Space-Time Transmission and Iterative Decoding

Cited by 711 publications

References 23 publications

Asynchronous cooperative communication systems: A survey on signal designs

Asynchronous cooperative communication systems: A survey on signal designs

Cooperative Wireless Networking Beyond Store-and-Forward

Amplify-forward and decode-forward cooperation relying on systematic Luby transform coded Hybrid Automatic-Repeat-reQuest

Contact Info

Product

Resources

About