Half-duplex relay systems based on polar codes

A cooperative communication scheme based on polar codes is proposed for time-division half-duplex relay systems, where the relay node is either a transmitter or a receiver in different time slots of each transmitting period. To enhance efficiency and reduce latency, the proposed codes utilise the decode-and-forward strategy and appropriate construction of polarisation. The authors prove that carefully constructed polar codes can achieve the theoretical capacity in the half-duplex relay channel, and time-division and information-division parameters are also optimised to improve the performance of the relay system. It is demonstrated that the random selection strategy is more effective than the appointed one. Simulation results show that the proposed scheme is useful not only for time-division half-duplex relay systems but also for other relay cases.

[1]  Xiangyun Zhou,et al.  On Lower Bounding the Information Capacity of Amplify and Forward Wireless Relay Channels with Channel Estimation Errors , 2011, IEEE Transactions on Wireless Communications.

[2]  Jun Hu,et al.  Low Density Parity Check Codes over Wireless Relay Channels , 2007, IEEE Transactions on Wireless Communications.

[3]  Emre Telatar,et al.  On the rate of channel polarization , 2008, 2009 IEEE International Symposium on Information Theory.

[4]  Alexander Vardy,et al.  List Decoding of Polar Codes , 2015, IEEE Transactions on Information Theory.

[5]  Kai Chen,et al.  Practical polar code construction over parallel channels , 2013, IET Commun..

[6]  Erdal Arikan,et al.  Systematic Polar Coding , 2011, IEEE Communications Letters.

[7]  K. Niu,et al.  Stack decoding of polar codes , 2012 .

[8]  Mikael Skoglund,et al.  Polar codes for compress-and-forward in binary relay channels , 2010, 2010 Conference Record of the Forty Fourth Asilomar Conference on Signals, Systems and Computers.

[9]  Mikael Skoglund,et al.  Nested Polar Codes for Wiretap and Relay Channels , 2010, IEEE Communications Letters.

[10]  E. Meulen,et al.  Three-terminal communication channels , 1971, Advances in Applied Probability.

[11]  Jun Hu,et al.  Low Density Parity Check Codes over Half-duplex Relay Channels , 2006, 2006 IEEE International Symposium on Information Theory.

[12]  Thomas E. Fuja,et al.  Bilayer Low-Density Parity-Check Codes for Decode-and-Forward in Relay Channels , 2006, IEEE Transactions on Information Theory.

[13]  Mikael Skoglund,et al.  On distributed serially concatenated codes , 2009, 2009 IEEE 10th Workshop on Signal Processing Advances in Wireless Communications.

[14]  Michael Gastpar,et al.  Cooperative strategies and capacity theorems for relay networks , 2005, IEEE Transactions on Information Theory.

[15]  Andrea J. Goldsmith,et al.  Reliable Joint Source-Channel Cooperative Transmission Over Relay Networks , 2013, IEEE Transactions on Information Theory.

[16]  A. H. W. Zhang,et al.  Capacity-Approaching Turbo Coding For Half-Duplex Relaying , 2007, IEEE Transactions on Communications.

[17]  Zheng Zhang,et al.  Capacity-approaching turbo coding and iterative decoding for relay channels , 2005, IEEE Transactions on Communications.

[18]  Abbas El Gamal,et al.  Capacity theorems for the relay channel , 1979, IEEE Trans. Inf. Theory.

[19]  Mikael Skoglund,et al.  Polar Codes for Cooperative Relaying , 2012, IEEE Transactions on Communications.

[20]  Erdal Arikan,et al.  Channel Polarization: A Method for Constructing Capacity-Achieving Codes for Symmetric Binary-Input Memoryless Channels , 2008, IEEE Transactions on Information Theory.

[21]  Ángel M. Bravo-Santos.  Polar Codes for Gaussian Degraded Relay Channels , 2013, IEEE Communications Letters.

[22]  Ryuhei Mori,et al.  Performance and construction of polar codes on symmetric binary-input memoryless channels , 2009, 2009 IEEE International Symposium on Information Theory.

[23]  Anders Høst-Madsen,et al.  Capacity bounds and power allocation for wireless relay channels , 2005, IEEE Transactions on Information Theory.

[24]  Emre Telatar,et al.  On the construction of polar codes , 2011, 2011 IEEE International Symposium on Information Theory Proceedings.