Distributionally Robust Relay Beamforming in Wireless Communications
文献类型：会议论文
| 作者 | Shimin Gong; Sissi Xiaoxiao Wu; Anthony Man-Cho So; Xiaoxia Huang |
| 出版日期 | 2016 |
| 会议名称 | ACM MSWiM 2016 |
| 会议地点 | Malta |
| 英文摘要 | We consider a wireless network with densely deployed user devices (e.g., a device-to-device or wireless sensor network) underlaying a cellular system, in which some user devices act as relays to facilitate data transmissions between a distant transceiver pair under imperfect channel information. Motivated by the observation that most of the channel distributions are unimodal, we formulate a novel distributionally robust beamforming problem, in which the random channel coefficient follows a class of unimodal distribution with known first- and second-order moments. Our design objective is to maximize the worst-case signal-to-noise ratio (SNR) at the dedicated user device while satisfying a probabilistic interference constraint at the cellular user equipment (CUE). Though such a unimodal distributionally robust (UDR) beamforming problem is non-convex, we show that an approximate solution can be computed efficiently using semidefinite programming. Our simulation results show that under mild conditions, the UDR model yields significant beamforming performance improvement over conventional robust models that merely rely on first- and second-order moments of the channel distribution. |
| 收录类别 | EI |
| 语种 | 英语 |
| 源URL | [http://ir.siat.ac.cn:8080/handle/172644/10303]  |
| 专题 | 深圳先进技术研究院_数字所 |
| 作者单位 | 2016 |
| 推荐引用方式 GB/T 7714 | Shimin Gong,Sissi Xiaoxiao Wu,Anthony Man-Cho So,et al. Distributionally Robust Relay Beamforming in Wireless Communications[C]. 见:ACM MSWiM 2016. Malta. |
入库方式： OAI收割
来源：深圳先进技术研究院
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