Abstract
Modulation diversity (MoDiv) is a simple and practical transmission enhancement technique that utilizes different modulation mappings to reduce packet loss rate and achieve higher link throughput. MoDiv is particularly meaningful and effective in Hybrid-Automatic Repeat reQuest (HARQ) systems. We study the deployment and optimization of MoDiv for HARQ in a MIMO-coordinated multi-point scenario under Rician fading channel to mitigate packet loss. We formulate the design optimization of MoDiv into a quadratic 3-D assignment problem, then solve it using a modified iterated local search method. Numerical results demonstrate clear performance gain over simple retransmissions and over a heuristic design under fading channels.
Original language | English (US) |
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Article number | 7593297 |
Pages (from-to) | 290-293 |
Number of pages | 4 |
Journal | IEEE Communications Letters |
Volume | 21 |
Issue number | 2 |
DOIs | |
State | Published - Feb 2017 |
Keywords
- CoMP
- HARQ
- MIMO
- MoDiv
- Q3AP
ASJC Scopus subject areas
- Modeling and Simulation
- Computer Science Applications
- Electrical and Electronic Engineering