Power Allocation for HARQ-IR Systems Under QoS Constraints and Limited Feedback

被引：17
|
作者：
To, Duc [1 ]
Nguyen, Huan X. [2 ]
Quoc-Tuan Vien [2 ]
Huang, Li-Ke [1 ]
机构：
[1] Aerofex Ltd, Stevenage SG1 2AN, Herts, England
[2] Middlesex Univ, Sch Sci & Technol, London NW4 4BT, England
来源：
IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS | 2015年 / 14卷 / 03期
关键词：
Resource allocation; effective capacity; hybrid automatic repeat request (HARQ); quality of service (QoS); HYBRID-ARQ; RESOURCE-ALLOCATION; FADING CHANNELS; MONOTONIC OPTIMIZATION; PERFORMANCE; ADAPTATION; COMMUNICATION; NETWORKS; CAPACITY; DESIGN;
D O I：
10.1109/TWC.2014.2370049
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This paper investigates power allocation for reliable downlink transmission in cellular networks subject to quality-of-service (QoS) constraints. The reliability of data transmissions is assured by hybrid automatic repeat request protocol with incremental redundancy (HARQ-IR). By developing and evaluating the effective throughput of the HARQ-IR protocol for the downlink transmission under buffer-limited QoS constraints, we propose a novel adaptive power allocation algorithm to efficiently exploit the available resources when only limited channel state information (CSI) is available. The proposed algorithm, based on monotonic optimisation, allows near-optimal performance to be achieved with reasonably low complexity.
引用
收藏
页码：1581 / 1594
页数：14
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