title: A Novel Optimal Joint Resource Allocation Method in Cooperative Multicarrier Networks: Theory and Practice.
abstract: With the increasing demands for better transmission speed and robust quality of service (QoS), the capacity constrained backhaul gradually becomes a bottleneck in cooperative wireless networks, e.g., in the Internet of Things (IoT) scenario in joint processing mode of LTE-Advanced Pro. This paper focuses on resource allocation within capacity constrained backhaul in uplink cooperative wireless networks, where two base stations (BSs) equipped with single antennae serve multiple single-antennae users via multi-carrier transmission mode. In this work, we propose a novel cooperative transmission scheme based on compress-and-forward with user pairing to solve the joint mixed integer programming problem. To maximize the system capacity under the limited backhaul, we formulate the joint optimization problem of user sorting, subcarrier mapping and backhaul resource sharing among different pairs (subcarriers for users). A novel robust and efficient centralized algorithm based on alternating optimization strategy and perfect mapping is proposed. Simulations show that our novel method can improve the system capacity significantly under the constraint of the backhaul resource compared with the blind alternatives.
authors.affiliation: Xichang Satellite Launch Center, Xichang 615000, China. yuangao08@tsinghua.edu.cn.|State Key Laboratory on Microwave and Digital Communications, National Laboratory for Information Science and Technology, Tsinghua University, Beijing 100084, China. yuangao08@tsinghua.edu.cn.|China Defense Science and Technology Information Center, Beijing 100030, China. yuangao08@tsinghua.edu.cn.
authors.forename: Yuan
authors.initials: Y
authors.lastname: Gao
authors.affiliation: Xichang Satellite Launch Center, Xichang 615000, China. wgzhou@nudt.edu.cn.
authors.forename: Weigui
authors.initials: W
authors.lastname: Zhou
authors.affiliation: Xichang Satellite Launch Center, Xichang 615000, China. aohong76@aliyun.com.
authors.forename: Hong
authors.initials: H
authors.lastname: Ao
authors.affiliation: Xichang Satellite Launch Center, Xichang 615000, China. chujian_sat@tom.com.
authors.forename: Jian
authors.initials: J
authors.lastname: Chu
authors.affiliation: Xichang Satellite Launch Center, Xichang 615000, China. zhouquanxslc@foxmail.com.
authors.forename: Quan
authors.initials: Q
authors.lastname: Zhou
authors.affiliation: Xichang Satellite Launch Center, Xichang 615000, China. zhoubowin78@sina.com.
authors.forename: Bo
authors.initials: B
authors.lastname: Zhou
authors.affiliation: Xichang Satellite Launch Center, Xichang 615000, China. wangkangdream@gmail.com.
authors.forename: Kang
authors.initials: K
authors.lastname: Wang
authors.affiliation: State Key Laboratory on Microwave and Digital Communications, National Laboratory for Information Science and Technology, Tsinghua University, Beijing 100084, China. liyi@rdfz.cn.|The High School Affiliated to Renmin University of China, Beijing 100080, China. liyi@rdfz.cn.
authors.forename: Yi
authors.initials: Y
authors.lastname: Li
authors.affiliation: State Key Laboratory on Microwave and Digital Communications, National Laboratory for Information Science and Technology, Tsinghua University, Beijing 100084, China. xuep04@foxmail.com.|Naval Aeronautical and Astronautical University, Yantai 264000, China. xuep04@foxmail.com.
authors.forename: Peng
authors.initials: P
authors.lastname: Xue
keywords: backhaul optimization; distributed compression; uplink CoMP; user pairing; virtual MIMO