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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Yunchuan Yang Hui Zhao Cong Sun Hua Sun Wenbo Wang |
| Copyright Year | 2011 |
| Description | Author affiliation: Academy of Mathematics and Systems Science, Chinese Academy of Sciences, Beijing, China (Cong Sun) || Key Laboratory of Universal Wireless Communication, Ministry of Education, Beijing University of Posts &Telecommunications, Beijing, China (Yunchuan Yang; Hui Zhao; Hua Sun; Wenbo Wang) |
| Abstract | This paper investigates the interference alignment solution for a fully connected (1 × 1, $1/2)^{K}$ K-user symmetric interference network with K single-antenna relays. The criterion of minimum total interference plus noise leakage (Min-INL) is considered with a set of lower and upper bound power constraints at each relay. And an iterative algorithm is proposed to alternatively optimize the precoders at transmitters, decoders at receivers and relay beamforming weights. There have closed-form solutions for subproblems to solve precoders and decoders. Subproblem with variables of relay beamforming weights is formulated as nonconvex quadratically constrained quadratic programs (QCQP) and efficiently solved by semi-definite relaxation (SDR). Simulation results demonstrate that the criterion of Min-INL with proposed algorithm obtains higher throughputs than that of minimum total interference leakage (Min-IL) and the conventional orthogonal transmission scheme. |
| Starting Page | 1347 |
| Ending Page | 1352 |
| File Size | 301754 |
| Page Count | 6 |
| File Format | |
| ISBN | 9781467300391 |
| e-ISBN | 9781467300407 |
| e-ISBN | 9781467300384 |
| DOI | 10.1109/GLOCOMW.2011.6162406 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2011-12-05 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Array signal processing Transmitters semi-definite relaxation(SDR) Noise interference alignment Interference Receivers quadratically constrained quadratic program (QCQP) interference plus noise leakage Decoding beamforming Relays |
| Content Type | Text |
| Resource Type | Article |
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