Full-Duplex Cooperative Rate-Splitting for Multigroup Multicast With SWIPT

计算机科学 多播 发射机功率输出 电信线路 数学优化 传输(电信) 无线 凸优化 最优化问题 发射机 最大功率转移定理 频道(广播) 计算机网络 功率(物理) 算法 电信 正多边形 数学 物理 量子力学 几何学
作者
Tiantian Li,Haixia Zhang,Xiaotian Zhou,Dongfeng Yuan
出处
期刊:IEEE Transactions on Wireless Communications [Institute of Electrical and Electronics Engineers]
卷期号:21 (6): 4379-4393 被引量:3
标识
DOI:10.1109/twc.2021.3129881
摘要

We propose a full-duplex cooperative rate-splitting (FD-CRS) scheme in a downlink two-group multicast system. At the transmitter, two distinct messages requested by the two groups respectively are split and then encoded into one common stream and two private streams, based on the principles of rate splitting multiple access (RSMA). The cell-center-users (CCUs) in one group decode the common stream and their own private stream successively, then cooperatively form a distributed beamformer to assist the cell-edge-users (CEUs) in common stream transmission. To make full utilization of the time resources during cooperation, all the CCUs operate in FD mode to enable information receiving and forwarding simultaneously. Moreover, since it is unfair to sacrifice the cooperator’ energy to forward, each CCU is enabled to harvest energy from the received signal by adopting power-splitting protocol. With the objective of minimizing the system transmission power while guaranteeing all the groups’ target rates, an optimization problem is formulated to jointly design the beamformers, message splitting and power-splitting ratio. We reformulate the non-convex problem by using the difference of convex (DC) programming, and then propose an iterative algorithm based on successive convex approximation to solve it to obtain a local minimum. Further, a robust algorithm combining the semi-positive definite relaxation (SDR) technique and penalty function method is developed for the case with imperfect channel state information. Although our proposed FD-CRS scheme adopts the seemingly energy-wasting wireless power transfer technique, the simulation results still confirm the superiority of the proposed scheme, i.e., it outperforms the other baseline schemes in terms of power consumption under various user deployment, network loads and target rates. That is attributed to the comprehensive utilization of FD cooperation gain, spatial multiplexing gain as well as power multiplexing gain.
最长约 10秒,即可获得该文献文件

科研通智能强力驱动
Strongly Powered by AbleSci AI
科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
3秒前
乐意完成签到,获得积分10
4秒前
5秒前
5秒前
5秒前
七羽完成签到 ,获得积分10
7秒前
夜阑卧听完成签到,获得积分10
7秒前
迟大猫应助舒适元柏采纳,获得10
9秒前
9秒前
八号向日葵完成签到 ,获得积分10
10秒前
xiechangshan发布了新的文献求助10
12秒前
JerryZ发布了新的文献求助10
13秒前
aaa完成签到,获得积分10
13秒前
烟花应助慢慢子采纳,获得10
14秒前
三三完成签到 ,获得积分10
14秒前
奎奎完成签到,获得积分10
15秒前
科目三应助GOURDIN采纳,获得10
16秒前
机灵哈密瓜完成签到,获得积分10
16秒前
17秒前
huco完成签到,获得积分10
18秒前
eternity136应助cc采纳,获得20
19秒前
dudu完成签到,获得积分10
20秒前
小马甲应助奎奎采纳,获得10
21秒前
HEIKU应助科研通管家采纳,获得10
21秒前
李健应助科研通管家采纳,获得10
21秒前
21秒前
lynn应助科研通管家采纳,获得20
21秒前
无花果应助科研通管家采纳,获得10
21秒前
乐乐应助科研通管家采纳,获得10
21秒前
bkagyin应助科研通管家采纳,获得10
21秒前
科研通AI5应助科研通管家采纳,获得10
21秒前
香蕉觅云应助科研通管家采纳,获得10
21秒前
科研通AI5应助科研通管家采纳,获得10
21秒前
HEIKU应助科研通管家采纳,获得10
21秒前
wang应助科研通管家采纳,获得10
22秒前
HEIKU应助科研通管家采纳,获得10
22秒前
1+1应助科研通管家采纳,获得10
22秒前
jwx应助科研通管家采纳,获得10
22秒前
Auston_zhong应助科研通管家采纳,获得10
22秒前
科研通AI2S应助科研通管家采纳,获得10
22秒前
高分求助中
Production Logging: Theoretical and Interpretive Elements 2700
Neuromuscular and Electrodiagnostic Medicine Board Review 1000
こんなに痛いのにどうして「なんでもない」と医者にいわれてしまうのでしょうか 510
The First Nuclear Era: The Life and Times of a Technological Fixer 500
Unusual formation of 4-diazo-3-nitriminopyrazoles upon acid nitration of pyrazolo[3,4-d][1,2,3]triazoles 500
岡本唐貴自伝的回想画集 500
Distinct Aggregation Behaviors and Rheological Responses of Two Terminally Functionalized Polyisoprenes with Different Quadruple Hydrogen Bonding Motifs 450
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 物理 生物化学 纳米技术 计算机科学 化学工程 内科学 复合材料 物理化学 电极 遗传学 量子力学 基因 冶金 催化作用
热门帖子
关注 科研通微信公众号,转发送积分 3671619
求助须知:如何正确求助?哪些是违规求助? 3228325
关于积分的说明 9779523
捐赠科研通 2938636
什么是DOI,文献DOI怎么找? 1610158
邀请新用户注册赠送积分活动 760547
科研通“疑难数据库(出版商)”最低求助积分说明 736093