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 language | English |
|---|---|
| Title of host publication | IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC |
| Pages | 2045-2049 |
| Number of pages | 5 |
| DOIs | |
| Publication status | Published - 2011 Dec 1 |
| Event | 2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC'11 - Toronto, ON, Canada Duration: 2011 Sep 11 → 2011 Sep 14 |
Other
| Other | 2011 IEEE 22nd International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC'11 |
|---|---|
| Country | Canada |
| City | Toronto, ON |
| Period | 11/9/11 → 11/9/14 |
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ASJC Scopus subject areas
- Electrical and Electronic Engineering
Cite this
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 proceeding › Conference contribution
}
TY - GEN
T1 - Adaptive bit allocation methods for multi-cell joint processing systems with limited feedback
AU - Yu, Seungpyo
AU - Kim, Young Tae
AU - Park, Seok Hwan
AU - Lee, Inkyu
PY - 2011/12/1
Y1 - 2011/12/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84863274864&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84863274864&partnerID=8YFLogxK
U2 - 10.1109/PIMRC.2011.6139873
DO - 10.1109/PIMRC.2011.6139873
M3 - Conference contribution
AN - SCOPUS:84863274864
SN - 9781457713484
SP - 2045
EP - 2049
BT - IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC
ER -