2017/02/02 by Sanjay Goyal, Pei Liu, Goyal, Sanjay +3
Engineering · Medicine · #Advanced MIMO Systems Optimization #FOS: Computer and information sciences #Full-Duplex Wireless Communications #Information Theory (cs.IT) #Networking and Internet Architecture (cs.NI) #Polyomavirus and related diseases
paper · pdf · doi:10.48550/arxiv.1702.00900
openalex publication_date 2017/02/02 · openalex created_date 2022/09/28 · openalex updated_date 2026/07/28
Full duplex (FD) communications, which increases spectral efficiency through\nsimultaneous transmission and reception on the same frequency band, is a\npromising technology to meet the demand of next generation wireless networks.\nIn this paper, we consider the application of such FD communication to\nself-backhauled small cells. We consider a FD capable small cell base station\n(BS) being wirelessly backhauled by a FD capable macro-cell BS. FD\ncommunication enables simultaneous backhaul and access transmissions at small\ncell BSs, which reduces the need to orthogonalize allocated spectrum between\naccess and backhaul. However, in such simultaneous operations, all the links\nexperience higher interference, which significantly suppresses the gains of FD\noperations. We propose an interference-aware scheduling method to maximize the\nFD gain across multiple UEs in both uplink and downlink directions, while\nmaintaining a level of fairness between all UEs. It jointly schedules the\nappropriate links and traffic based on the back-pressure algorithm, and\nallocates appropriate transmission powers to the scheduled links using\nGeometric Programming. Our simulation results show that the proposed scheduler\nnearly doubles the throughput of small cells compared to traditional\nhalf-duplex self-backhauling.\n