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

页码：1581 / 1594

页数：14

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