Paper Info
Title
Effects of Heterogenous Mobility on Rate Adaptation and User Scheduling in Cellular Networks With HARQ
Abstract
In this paper, we investigate the effects of heterogeneous mobility on rate adaptation and user scheduling in cellular networks with hybrid automatic repeat request (HARQ). To this end, we first show the performance tradeoff between two extreme scheduling criteria: retransmission-oriented scheduling (ROS) and mixed scheduling (MS) criteria over time-correlated Rayleigh fading channels. Then, we propose an ROS-based joint rate adaptation and user scheduling (JRAUS) policy for cellular networks and compare it with the conventional and reference JRAUS policies. We also evaluate the system-level performance of the proposed ROS-based JRAUS policy in various user distribution and mobility scenarios. In particular, in an asymmetric user distribution and heterogeneous mobility scenario, which is the most general one in practice, the proposed JRUAS policy yields a throughput gain of 49% and a fairness gain of 155% over the conventional JRAUS policies. In this paper, we find that the rate adaptation is significant not only in a single point-to-point link but in multiuser systems with heterogeneous mobility as well.
Year
DOI
Venue
2013
10.1109/TVT.2013.2250533
IEEE T. Vehicular Technology
Keywords
Field
DocType
Fading,Throughput,Correlation,Scheduling,Channel models,Automatic repeat request,Joints
Hybrid automatic repeat request,Rayleigh fading,Fair-share scheduling,Scheduling (computing),Computer science,Computer network,Automatic repeat request,Cellular network,Throughput,Round-robin scheduling
Journal
Volume
Issue
ISSN
62
6
0018-9545
Citations 
PageRank 
References 
6
0.46
15
Authors
4
Name
Order
Citations
PageRank
Su Min Kim112919.92
Bang Chul Jung264270.83
Wan Choi32975198.56
Dan Keun Sung41478147.84