Coexistence of MIMO Radar and FD MIMO Cellular Systems With QoS Considerations
Coexistence of MIMO Radar and FD MIMO Cellular Systems With QoS Considerations
复制标题
DOI：
10.1109/twc.2018.2866044
复制
发表时间：
2018-08
影响因子：
10.4
通讯作者：
S. Biswas;Keshav Singh;Omid Taghizadeh;T. Ratnarajah
中科院分区：
文献类型：
--
作者：
S. Biswas;Keshav Singh;Omid Taghizadeh;T. Ratnarajah
在本文中，多输入多输出（MIMO）雷达系统（RS）和MIMO蜂窝系统（CS），包括一个全双工（FD）基站（BS）服务多个下行链路和上行链路用户在同一时间和频率之间的频谱共享的可行性进行了研究。虽然提出了CS的BS和用户处的联合收发器设计技术以最大化MIMO RS的检测概率（PoD），但受制于用户的服务质量（QoS）和CS处的发射功率的约束，基于零空间的波形投影被用于减轻从RS到CS的干扰。特别是，所提出的技术通过最大化其下限来优化RS的PoD的性能，该下限是通过利用PoD及其非中心性参数的单调递增关系来获得的。数值结果表明，所提出的频谱共享框架的效用，但与RS的发射功率，RS的PoD，CS的剩余自干扰功率在FDBS和用户的QoS相应的性能有一定的权衡。
In this paper, the feasibility of spectrum sharing between a multiple–input multiple–output (MIMO) radar system (RS) and a MIMO cellular system (CS), comprising of a full-duplex (FD) base station (BS) serving multiple downlink and uplink users at the same time and frequency is investigated. While a joint transceiver design technique at the CS’s BS and users is proposed to maximize the probability of detection (PoD) of the MIMO RS, subject to constraints of quality of service (QoS) of users and transmit power at the CS, null-space based waveform projection is used to mitigate the interference from RS toward CS. In particular, the proposed technique optimizes the performance of PoD of RS by maximising its lower bound, which is obtained by exploiting the monotonically increasing relationship of PoD and its non-centrality parameter. The numerical results show the utility of the proposed spectrum sharing framework, but with certain tradeoffs in performance corresponding to RS’s transmit power, RS’s PoD, CS’s residual self-interference power at the FDBS and QoS of users.