A closed form approximation of the sum rate of random beamforming with multiple codebooks and its application to control of the number of codebooks

Janghoon Yang, Yohan Kim, Hyukjin Chae, Dong Ku Kim

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

In this letter, a closed form approximation of the sum rate of random beamforming with multiple codebooks is derived. It is also proved that signal to interference plus noise ratios (SINRs) over different codeboks are independently distributed on the contrast to existing belief on dependence of SINRs. Through numerical simulation, it is shown that the derived approximation is tightly matched to the actual sum rate, and control of the number of codebooks based on the closed form approximation achieves near optimal sum rate performance.

Original languageEnglish
Pages (from-to)672-674
Number of pages3
JournalIEEE Communications Letters
Volume12
Issue number9
DOIs
Publication statusPublished - 2008

All Science Journal Classification (ASJC) codes

  • Modelling and Simulation
  • Computer Science Applications
  • Electrical and Electronic Engineering

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