Title :
Low-Cost Interleaver Design for Two-Way Relay OFDM Systems
Author :
Sai Jin ; Li Ping
Author_Institution :
Dept. of Electron. Eng., City Univ. of Hong Kong, Hong Kong, China
Abstract :
An amplify-and-forward method for two-way relay OFDM systems is investigated, assuming that the channel state information (CSI) is known at all nodes. Power allocation and interleaving operations are performed to maximize the sum-rate of the system. A low-cost partitioning and mapping scheme is proposed for the interleaver design problem. Simulation results show that the proposed scheme can achieve near-optimal performance with significantly reduced complexity.
Keywords :
OFDM modulation; amplify and forward communication; resource allocation; CSI; amplify-and-forward method; channel state information; interleaving operations; low-cost interleaver; low-cost partitioning; mapping scheme; near-optimal performance; power allocation; two-way relay OFDM systems; Complexity theory; OFDM; Partitioning algorithms; Relays; Resource management; Upper bound; Wireless communication; OFDM; interleaving; power allocation; two-way relay;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2013.040913.122740
