Enhanced linear precoding in coordinated multicell broadcast systems

Seyed Morteza Razavi*, Tharmalingam Ratnarajah

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Communication quality in interference-limited cellular networks depends heavily on the coordination among base stations (BSs) for mitigating the interference. In this paper we present a novel linear precoding technique based on phase alignment in coordinated networks to provide spectrally efficient communications in cellular downlink systems employing M-ary phase-shift keying (M-PSK) modulation. We consider a wireless interference network consisting of K BS where each BS transmitting d independent data streams which can be shared among mobile units. We also assume zero-forcing coordination among all BSs. To evaluate the performance of the proposed network configuration, we compare it with interference alignment (IA). Simulation results show that for the fixed number of degrees of freedom per cell, the proposed scheme achieves much better sum rate as well as symbol error rate performance than zero-forcing IA (ZFIA) while requiring much less number of transmit and receive antennas.

Original languageEnglish
Title of host publicationIEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC
Pages249-253
Number of pages5
DOIs
Publication statusPublished - 2 Nov 2012
Event2012 IEEE 13th International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2012 - Cesme, United Kingdom
Duration: 17 Jun 201220 Jun 2012

Conference

Conference2012 IEEE 13th International Workshop on Signal Processing Advances in Wireless Communications, SPAWC 2012
CountryUnited Kingdom
CityCesme
Period17/06/1220/06/12

Fingerprint Dive into the research topics of 'Enhanced linear precoding in coordinated multicell broadcast systems'. Together they form a unique fingerprint.

Cite this