Incorporating Retransmission in Quality-of-Service Guaranteed Multiuser Scheduling Over Wireless Links
- Resource Type
- Authors
- Hanqi Zhuang; Salvatore D. Morgera; Di Wang; Xin Wang; I. Li
- Source
- IEEE Transactions on Vehicular Technology. 58:4388-4397
- Subject
- Computer Networks and Communications
Computer science
Retransmission
Automatic repeat request
Aerospace Engineering
Link adaptation
Data_CODINGANDINFORMATIONTHEORY
Scheduling (computing)
Computer Science::Networking and Internet Architecture
Wireless
Fading
Electrical and Electronic Engineering
Computer Science::Information Theory
Channel code
Wireless network
business.industry
Quality of service
ComputerSystemsOrganization_COMPUTER-COMMUNICATIONNETWORKS
Nakagami distribution
Spectral efficiency
Computer Science::Performance
Automotive Engineering
business
Heterogeneous network
Communication channel
Computer network
- Language
- ISSN
- 1939-9359
0018-9545
A cross-layer optimization scheme combining retransmission with multiuser diversity is investigated for wireless communications. To this end, the joint design of adaptive modulation and coding (AMC) with the retransmission-based automatic repeat request (ARQ) protocol is first outlined. This design is then employed to devise multiuser scheduling schemes that can optimally capture the available multiuser diversity and retransmission-induced spectral efficiency gain. In addition, the proposed stochastic scheduling algorithms can operate even when the underlying fading channel distribution is unknown a priori while asymptotically converging to the optimum benchmark with guarantees on prescribed fairness and rate/delay requirements for a heterogeneous network traffic. Numerical results are provided to verify the advantage of these novel methods for multiuser transmissions over Nakagami block-fading channels.