Adaptive Wireless Transceivers: Turbo-Coded, Turbo-Equalised and Space-Time Coded TDMA, CDMA, MC-CDMA and Ofdm Systems
Cooperative wireless communications: a cross-layer approach
IEEE Wireless Communications
Iterative decoding for MIMO channels via modified sphere decoding
IEEE Transactions on Wireless Communications
Cooperative diversity in wireless networks: Efficient protocols and outage behavior
IEEE Transactions on Information Theory
Cooperative Strategies and Capacity Theorems for Relay Networks
IEEE Transactions on Information Theory
A Network Coding Approach to Cooperative Diversity
IEEE Transactions on Information Theory
Relay-based deployment concepts for wireless and mobile broadband radio
IEEE Communications Magazine
Distributed Turbo Coding With Soft Information Relaying in Multihop Relay Networks
IEEE Journal on Selected Areas in Communications
Optimal decoding for hard-decision forwarding aided cooperative spatial multiplexing systems
IEEE Transactions on Wireless Communications
Iterative detection and decoding for hard-decision forwarding aided cooperative spatial multiplexing
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Mitigating error propagation in two-way relay channels with network coding
IEEE Transactions on Wireless Communications
Joint network/channel decoding for heterogeneous multi-source/multi-relay cooperative networks
Proceedings of the 5th International ICST Conference on Performance Evaluation Methodologies and Tools
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This paper proposes two types of new decoding algorithms for a network coding aided relaying (NCR) system, which adopts multiple antennas at both the transmitter and receiver. In the NCR system, the relay station (RS) decodes the data received from both the base station (BS) as well as from the mobile station (MS) and combines the decoded signals into a single data stream before forwarding it to both. In this paper, we consider the realistic scenario of encountering decoding errors at the RS, which results in erroneous forwarded data. Under this assumption, we derive decoding algorithms for both the BS and the MS in order to reduce the deleterious effects of imperfect decoding at the RS. We first propose a decoding algorithm for a hard decision based forwarding (HDF) system. Then, for the sake of achieving further performance improvements, we also employ soft decision forwarding (SDF) and propose a novel error model, which divides the error pattern into two components: hard and soft errors. Given this error model, we then modify the HDF decoder for employment in SDF systems. We also derive estimation algorithms for their parameters that are required for the efficient operation of the proposed decoders. Our simulation results show that the proposed algorithms provide substantial performance improvements in terms of the attainable packet error rate as a benefit of our more accurate error model.