Hybrid full-/half-duplex cellular networks:user admission and power control  

全/半双工混合蜂窝网络:用户准入和功率控制（英文）

作　　者：Lu CHEN Ding-zhu WEN Cai-jun ZHONG Guan-ding YU 

机构地区：[1]Institute of Information and Communication Engineering, Zhejiang University

出　　处：《Frontiers of Information Technology & Electronic Engineering》2018年第3期379-387,共9页信息与电子工程前沿（英文版）

基　　金：Project supported by the National Natural Science Foundation of China(No.61671406);the Zhejiang Provincial Natural Science Foundation of China(No.LR15F010001);and the National Science and Technology Major Project of China(No.2017ZX03001002-003)

摘　　要：We consider a single-cell network with a hybrid full-/half-duplex base station. For the practical scenario with N channels, K uplink users, and M downlink users （max{K,M} ≤ N ≤ K ＋ M）, we tackle the issue of user admission and power control to simultaneously maximize the user admission number and minimize the total transmit power when guaranteeing the quality-of-service requirement of individual users. We formulate a 0-1 integer programming problem for the joint-user admission and power allocation problem. Because finding the optimal solution of this problem is NP-hard in general, a low-complexity algorithm is proposed by introducing the novel concept of adding dummy users. Simulation results show that the proposed algorithm achieves performance similar to that of branch and bound algorithm and significantly outperforms the random pairing algorithm.考虑一个具有混合全/半双工基站的单小区蜂窝网络。对于有N条信道、K个上行用户和M个下行用户(max{K+M}≤N≤K+M)的实际场景,解决了用户准入和功率控制问题,在保证用户服务质量(QoS)的同时,最大化用户准入数量并最小化总发射功率。对于联合用户准入和功率分配问题,将该问题建模成一个0-1整数规划问题。由于寻找该问题最优解是一个NP-hard问题,通过引入"虚拟用户"的新概念,提出一种低复杂度算法。仿真结果表明,该算法和分支界定法性能相似,并且明显优于随机匹配算法的性能。

关 键 词：Full-duplex HALF-DUPLEX User admission Power control 

分 类 号：TN92[电子电信—通信与信息系统]