Opportunistic interference management: a new approach for multiantenna downlink cellular networks
Mohsen Karimzadeh Kiskani, Zheng Wang, Hamid R. Sadjadpour, Jose Armando Oviedo, Jose Joaquin Garcia-Luna-Aceves · Wireless Communications and Mobile Computing · 2014
Abstract A new approach for multiantenna broadcast channels in cellular networks based on multiuser diversity concept is introduced. The technique called opportunistic interference management achieves dirty paper coding capacity asymptotically with minimum feedback required. When there areKantennas at the base station withMmobile users in the cell, the proposed technique only requiresKinteger numbers related to channel state information between mobile users and base station. The encoding and decoding complexity of this scheme is the same as that of point‐to‐point communications, which makes the implementation of this technique easy. An antenna selection scheme is proposed at the base station to reduce the minimum required mobile users significantly at the expense of reasonable increase in feedback. In order to guarantee fairness, a new algorithm is presented that incorporates opportunistic interference management into existing Global System for Mobile communications (GSM) standard. Copyright © 2014 John Wiley & Sons, Ltd.