Adaptive bit allocation methods for multi-cell joint processing systems with limited feedback

Seungpyo Yu, Young Tae Kim, Seok Hwan Park, Inkyu Lee

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

4 Citations (Scopus)

Abstract

In this paper, we study multiple-input single-output joint processing (JP) systems with limited feedback where two adjacent base stations exchange both channel state information and their data. To optimize the sum-rate performance of the JP system, we propose a new feedback bit allocation method which maximizes quantization accuracy in the presence of pathloss. The quantization accuracy is formulated by the expectation of the inner product between the actual channel vector and the quantized channel vector. In order to maximize the quantization accuracy, we employ a new method which compensates the phase difference of the two channels. Through numerical evaluations, we show that our proposed feedback bit allocation strategies provide about 50% performance gain in terms of the sum rate performance compared to the conventional method with the equal bit allocation scheme.

Original languageEnglish
Title of host publicationIEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC
Pages2045-2049
Number of pages5
DOIs
Publication statusPublished - 2011 Dec 1
Event2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC'11 - Toronto, ON, Canada
Duration: 2011 Sep 112011 Sep 14

Other

Other2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC'11
CountryCanada
CityToronto, ON
Period11/9/1111/9/14

Fingerprint

Feedback
Processing
Channel state information
Base stations

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

Cite this

Yu, S., Kim, Y. T., Park, S. H., & Lee, I. (2011). Adaptive bit allocation methods for multi-cell joint processing systems with limited feedback. In IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC (pp. 2045-2049). [6139873] https://doi.org/10.1109/PIMRC.2011.6139873

Adaptive bit allocation methods for multi-cell joint processing systems with limited feedback. / Yu, Seungpyo; Kim, Young Tae; Park, Seok Hwan; Lee, Inkyu.

IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC. 2011. p. 2045-2049 6139873.

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

Yu, S, Kim, YT, Park, SH & Lee, I 2011, Adaptive bit allocation methods for multi-cell joint processing systems with limited feedback. in IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC., 6139873, pp. 2045-2049, 2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC'11, Toronto, ON, Canada, 11/9/11. https://doi.org/10.1109/PIMRC.2011.6139873
Yu S, Kim YT, Park SH, Lee I. Adaptive bit allocation methods for multi-cell joint processing systems with limited feedback. In IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC. 2011. p. 2045-2049. 6139873 https://doi.org/10.1109/PIMRC.2011.6139873
Yu, Seungpyo ; Kim, Young Tae ; Park, Seok Hwan ; Lee, Inkyu. / Adaptive bit allocation methods for multi-cell joint processing systems with limited feedback. IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC. 2011. pp. 2045-2049
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