Performance Analysis of Digital Wireless Networks with ARQ Schemes
ICCS '07 Proceedings of the 7th international conference on Computational Science, Part IV: ICCS 2007
Improving Handover Quality in 4G Mobile Systems
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences
Large-system-based performance analysis and design of multiuser cooperative networks
IEEE Transactions on Signal Processing
Optimal control of a single queue with retransmissions: delay-dropping tradeoffs
IEEE Transactions on Wireless Communications
Closed-loop cross-layer SDMA designs with outdated CSIT
IEEE Transactions on Wireless Communications
On the average rate performance of hybrid-ARQ in quasi-static fading channels
IEEE Transactions on Communications
Throughput of HARQ protocols on a block fading channel
IEEE Communications Letters
System level performance analysis of OFDM for UTRAN system
MUSP'06 Proceedings of the 6th WSEAS international conference on Multimedia systems & signal processing
Performance of MCS selection for collaborative hybrid-ARQ protocol
Euro-Par'07 Proceedings of the 13th international Euro-Par conference on Parallel Processing
Improving user throughput with Interleaved-HARQ in OFDM systems
FGIT'12 Proceedings of the 4th international conference on Future Generation Information Technology
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Third generation wireless systems typically employ adaptive coding and modulation, scheduling, and Hybrid Automatic Repeat reQuest (HARQ) techniques to provide high-speed packet data service on the downlink. Two main considerations in designing such a system are algorithms for the selection of coding and modulation schemes based on the channel quality of the link and algorithms for the selection of the user to whom a particular slot is assigned. We propose a systematic approach to optimize the mapping between signal-to-interference-and-noise ratio (SINR) and modulation and coding scheme (MCS) to maximize the throughput by taking into account the type of HARQ scheme employed. We also propose to incorporate frame error rate (FER) and retransmission information as a part of the scheduling decision. The proposed scheduler ranking methods based on using an effective rate rather than the instantaneous rate provide natural priority to retransmissions over new transmissions, and priority to users with better channel quality. Extensive simulation results comparing performance of the proposed methods to conventional methods are presented.