Diversity, interference cancellation and spatial multiplexing in MIMO mobile WiMAX systems

E. Biglieri, A. Goldsmith, B. Muquet, H. Sari

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

11 Scopus citations

Abstract

Multiple input multiple output (MIMO) techniques are an essential part of the IEEE 802.16e - 2005 specifications, which form the basis of mobile WiMAX systems. In this paper, we first discuss the tradeoffs between diversity, interference cancellation and spatial multiplexing in MIMO systems, and we compare optimum combining (OC), maximum-ratio combining (MRC) and interference cancellation for different numbers of receive antennas. Then, we focus on the two mandatory MIMO profiles in the IEEE specifications (Alamouti's STC and the 2×2 spatial multiplexing scheme) and compare them when the first is combined with MRC at the receiver. The analysis obtained using the ITU pedestrian B channel in ideal conditions indicates that the two schemes lead to similar performance when they are operated at the same spectral efficiency.

Original languageEnglish (US)
Title of host publication2007 IEEE Mobile WiMAX Symposium
PublisherIEEE Computer Society
Pages74-79
Number of pages6
ISBN (Print)1424409578, 9781424409570
DOIs
StatePublished - 2007
Externally publishedYes
Event2007 IEEE Mobile WiMAX Symposium - Orlando, FL, United States
Duration: Mar 25 2007Mar 29 2007

Publication series

Name2007 IEEE Mobile WiMAX Symposium

Conference

Conference2007 IEEE Mobile WiMAX Symposium
CountryUnited States
CityOrlando, FL
Period3/25/073/29/07

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Signal Processing

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