Abstract
In this paper, we propose a novel pseudo-random beamforming (BF) technique in multi-cell downlink networks consisting of multiple base stations (BSs) and one BS coordinator. In the proposed technique, each BS first generates M BF matrices with a pseudo-random manner and each mobile station (MS) opportunistically feeds back the received signal-to-interference-and-noise (SINR) ratio for each random beam to its home-cell BS. Then, each BS selects MSs for each beam based on the feedback information, and it also feeds back the achievable sum-rate for M BF matrices to a BS coordinator via wired backhaul links. Finally, the BS coordinator determines the optimal BF matrix that maximizes the sum-rate over the network, and sends the index of the optimal BF matrix to BSs. Each BS sends data to MSs by using the optimal BF matrix among M BF matrices. Main results indicate that there exists a trade-off between the feedback overhead and the achievable sum-rate, but the sum-rate of the proposed technique with opportunistic feedback approaches to that with full feedback as the number of MSs in each cell increases.
Original language | English |
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Title of host publication | International Conference on Information and Communication Technology Convergence |
Subtitle of host publication | ICT Convergence Technologies Leading the Fourth Industrial Revolution, ICTC 2017 |
Publisher | Institute of Electrical and Electronics Engineers Inc. |
Pages | 447-449 |
Number of pages | 3 |
ISBN (Electronic) | 9781509040315 |
DOIs | |
Publication status | Published - 2017 Dec 12 |
Event | 8th International Conference on Information and Communication Technology Convergence, ICTC 2017 - Jeju Island, Korea, Republic of Duration: 2017 Oct 18 → 2017 Oct 20 |
Publication series
Name | International Conference on Information and Communication Technology Convergence: ICT Convergence Technologies Leading the Fourth Industrial Revolution, ICTC 2017 |
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Volume | 2017-December |
Other
Other | 8th International Conference on Information and Communication Technology Convergence, ICTC 2017 |
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Country/Territory | Korea, Republic of |
City | Jeju Island |
Period | 17/10/18 → 17/10/20 |
Bibliographical note
Funding Information:ACKNOWLEDGEMENT This work has been supported by the Future Combat System Network Technology Research Center program of Defense Acquisition Program Administration and Agency for Defense Development (UD160070BD).
Publisher Copyright:
© 2017 IEEE.
All Science Journal Classification (ASJC) codes
- Computer Networks and Communications
- Computer Science Applications
- Information Systems
- Information Systems and Management