Adaptive Bit Allocation in Multi-cell Cooperative Block Diagonalization System with Delayed and Limited Feedback

doi:10.1016/S1005-8885(11)60294-X

中国邮电高校学报(英文) ›› 2012, Vol. 19 ›› Issue (5): 9-15.doi: 10.1016/S1005-8885(11)60294-X

Adaptive Bit Allocation in Multi-cell Cooperative Block Diagonalization System with Delayed and Limited Feedback

桂鑫¹,康桂霞张平³

1. Wireless Technology Innovation Institute, Beijing University of Posts and Telecommunications, Beijing 100876 , China 2. Key Laboratory of Universal Wireless Communications, Ministry of Education, Beijing University of Posts and Telecommunications, Beijing100876 , China

收稿日期:2012-03-05 修回日期:2012-06-29 出版日期:2012-10-31 发布日期:2012-10-08
通讯作者: 康桂霞 E-mail:kangguixia@mail.wtilabs.cn
基金资助:
国家自然科学基金;国家863计划项目;国际科技合作项目

Adaptive Bit Allocation in Multi-cell Cooperative Block Diagonalization System with Delayed and Limited Feedback

GUI Xin , KANG Gui-xia, Huang Dong-yan, LIU jia, ZHANG Ping

1. Wireless Technology Innovation Institute, Beijing University of Posts and Telecommunications, Beijing 100876 , China 2. Key Laboratory of Universal Wireless Communications, Ministry of Education, Beijing University of Posts and Telecommunications, Beijing100876 , China

Received:2012-03-05 Revised:2012-06-29 Online:2012-10-31 Published:2012-10-08

摘要/Abstract

摘要：

In multi-cell cooperative MIMO systems, base station (BS) can exchange and utilize channel state informations (CSI) of adjacent cell users to manage co-channel interference. Users quantize the CSIs of desired channel and interference channels using finite-rate feedback links, then BS can generate cooperative block diagonalization (BD) precoding matrices using the obtained quantized CSI at transmitter to supress co-channel interference. In this paper, a novel adaptive bit allocation scheme is proposed to minimize the rate loss due to imperfect CSI. We derive the closed-form expression of rate loss caused by both channel delay and limited feedback. Based on the derived rate loss expression, the proposed scheme can adaptively allocate more bits to quantize the better channels with smaller delays and fewer bits to worse channels with larger delays. Simulation results show that the proposed scheme yields higher performance than other allocation schemes.

关键词:

block diagonilization, multi-cell cooperative MIMO system, adaptive bit allocation scheme, channel delay and limited feedback

Abstract:

Key words:

block diagonilization, multi-cell cooperative MIMO system, adaptive bit allocation scheme, channel delay and limited feedback

参考文献

1. Caire G, Shamai S. On the achievable throughput of a multiantenna Gaussian broadcast channel. IEEE Transactions on Information Theory, 2003, 49(7): 1691-1706

2. Choi W, Andrews J G. The capacity gain from intercell scheduling in multi-antenna systems. IEEE Transactions on Wireless Communications, 2008, 7(2): 714-725

3. Karakayali M K, Foschini G J, Valenzuela R A. Network coordination for spectrally efficient communications in cellular systems. IEEE Wireless Communications, 2006, 13(4): 56-61

4. Jing S, Tse D N C, Soriaga J. B, et al. Multicell downlink capacity with coordinated processing. EURASIP Jounnal on Wireless Communnication and Network, 2008, 6(5): 1-19

5. Zhang J, Chen R, Andrews J G, et al. Networked MIMO with clustered linear precoding. IEEE Transactions on Wireless Communications, 2009, 8(4): 1910-1921

6. Jorswieck E A, Larsson E G, Danev D. Complete characterization of the praetor boundary for the M-5296

7. Ng B, Evans J, Hanly S, et al. Distributed downlink beamforming with cooperative base stations. IEEE Transactions on Information Theory, 2008, 54(12): 5491-5499

8. Zhang R. Cooperative multi-cell block diagonalization with per-base-station power constraints. IEEE Journal on Selected Areas in Communications, 2010, 28(9): 1435-1445

9. Love D J, Heath R W, Vincent K N, et al. An overview of limited feedback in wireless communication systems. IEEE Journal on Selected Areas in Communications, 2008, 26(8): 1341-1365

10. Ravindran N, Jindal N. Limited feedback-based block diagonalization for the MIMO broadcast channel, IEEE Journal on Selected Areas in Communications, 2008, 26(8): 1473–1482

11. Zhang J, Andrews J G, Heath R W. Block diagonalization in the MIMO broadcast channel with delayed CSIT. Proceedings of the IEEE Global Telecommunications Conference (GLOBECOM’09), Nov 30-Dec 4, 2009, Honolulu, HI,USA. Piscataway, NJ, USA: IEEE, 2009: 6p

12. Zhang J, Andrews J G. Adaptive spatial intercell interference cancellation in multicell wireless networks. IEEE Journal on Selected Areas in Communications, 2010, 28(9): 1455-1468

13. Bhagavatula R, Heath R W. Adaptive limited feedback for sum-rate maximizing beamforming in cooperative multicell systems. IEEE Transactions on Signal Processing, 2011, 59(2): 800-811

14. Dai W, Liu Y, Rider B. Quantization bounds on grassmann manifolds and applications in MIMO systems. IEEE Transactions on Information Theory, 2008, 54(3): 1108-1123

15. Spencer Q H, Swindlehurst A L, Haardt M. Zero-forcing methods for downlink spatial multiplexing in multi-user MIMO channels. IEEE Transactions on Signal Processing, 2004, 52(2): 461-471

16. Golub G H, Loan C F V. Matrix Computations. 3rd ed. Baltimore, MD, USA: The Johns Hopkins University Press, 1989

Adaptive Bit Allocation in Multi-cell Cooperative Block Diagonalization System with Delayed and Limited Feedback

Adaptive Bit Allocation in Multi-cell Cooperative Block Diagonalization System with Delayed and Limited Feedback

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