Mixed Criteria Interference Alignment Aided Transceiver Design in Uplink Coordinated Multipoint Systems

• Main Authors: Chen, Wan-Lin, 陳琬琳
• Other Authors: Lee, Ta-Sung
• Format: Others
• Language: en_US
• Published: 2012
• Online Access: http://ndltd.ncl.edu.tw/handle/23175851497167388016

碩士 === 國立交通大學 === 電信工程研究所 === 101 === The demand for high data rate and uniform throughput for cellular user terminals in the cell coverage leads to a new coordinated multipoint (CoMP) transmission and reception technique proposed by the 3GPP LTE-A system. System performance can be enhanced by improving the quality of service (QoS) for cell-edge users. In this thesis, we incorporate the recently proposed interference alignment (IA) techniques in uplink CoMP to improve system capacity by leveraging the full cooperation and information exchange via the backhaul at the base stations. We propose a new iterative relaxed maximum signal-to-leakage-plus-noise ratio (SLNR) IA criterion and further combine it with the maximum signal-to-interference-plus-noise ratio (SINR) IA criterion to form a mixed-criteria IA-aided CoMP scheme. The proposed new criteria exhibit excellent convergence behaviors and provide substantial performance gain over conventional CoMP, thanks to the joint processing advantage in centralized CoMP. The effectiveness of the proposed scheme is confirmed by computer simulations.