User restriction scheme for feedback reduction of unitary matrix based SDMA

Woohyun Seo, Sungsoo Park, Dongyoung Kwon, Daesik Hong

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

Abstract

With the quantized channel state information (CSI), space division multiple access (SDMA) can extract the multiplexing gain under the limited feedback burden. However, huge signaling burden of feedback can still suffer SDMA system because the total feedback data of SDMA is linearly dependent on the number of users. Hence, we propose the user restriction scheme to control the feedback load. In this scheme, the cut-off level, which restricts the feedbacks of poor conditioned users, is suggested for the reduction of the feedback burden without the performance loss. From simulation results, then, we show that the proposed feedback scheme can achieve not only the sum-rate gain but also the reasonable feedback reduction.

Original languageEnglish
Title of host publication2010 7th IEEE Consumer Communications and Networking Conference, CCNC 2010
DOIs
Publication statusPublished - 2010 Apr 29
Event2010 7th IEEE Consumer Communications and Networking Conference, CCNC 2010 - Las Vegas, NV, United States
Duration: 2010 Jan 92010 Jan 12

Publication series

Name2010 7th IEEE Consumer Communications and Networking Conference, CCNC 2010

Other

Other2010 7th IEEE Consumer Communications and Networking Conference, CCNC 2010
CountryUnited States
CityLas Vegas, NV
Period10/1/910/1/12

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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    Seo, W., Park, S., Kwon, D., & Hong, D. (2010). User restriction scheme for feedback reduction of unitary matrix based SDMA. In 2010 7th IEEE Consumer Communications and Networking Conference, CCNC 2010 [5421821] (2010 7th IEEE Consumer Communications and Networking Conference, CCNC 2010). https://doi.org/10.1109/CCNC.2010.5421821