A Device-Centric Clustering Approach for Large-Scale Distributed Antenna Systems Using User Cooperation

• DOI: 10.1587/transcom.2017ebp3452
• Publication Date: 2018-08-12T22:22:08Z
• Authors: Ou ZHAO; Lin SHAN; Wei-Shun LIAO; Mirza GOLAM KIBRIA; Huan-Bang LI; Kentaro ISHIZU; Fumihide KOJIMA
• Keywords: 0203 mechanical engineering; 02 engineering and technology

Large-scale distributed antenna systems (LS-DASs) are gaining increasing interest and emerging as highly promising candidates for future wireless communications. To improve the user's quality of service (QoS) in these systems, this study proposes a user cooperation aided clustering approach based on device-centric architectures; it enables multi-user multiple-input multiple-output transmissions with non-reciprocal setups. We actively use device-to-device communication techniques to achieve sharing information try form clusters side instead traditional way that performs base station (BS) data offloading. further adopt architecture break limits classical BS-centric cellular structure. Moreover, we derive an approximate expression calculate rate LS-DASs employment zero-forcing precoding consideration inter-cluster interference. Numerical results indicate predicts lower computational cost than is indicated by computer simulation, proposed provides better experience for, particular, users who have unacceptable QoS.