Abstract
According to collaborative Hybrid Automatic-Repeat-reQuest (ARQ) protocols, relay stations that have been able to decode the original message from previous transmissions, collaborate with the source in future retransmissions by jointly sending a space-time codeword. In this letter, analysis of the average number of retransmissions and throughput of Collaborative Hybrid-ARQ Type I (i.e., without memory) and Chase Combining (i.e., with memory) protocols is provided for any number of relays.
Original language | English (US) |
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Pages (from-to) | 522-524 |
Number of pages | 3 |
Journal | IEEE Communications Letters |
Volume | 10 |
Issue number | 7 |
DOIs | |
State | Published - Jul 2006 |
All Science Journal Classification (ASJC) codes
- Modeling and Simulation
- Computer Science Applications
- Electrical and Electronic Engineering
Keywords
- Automatic-repeat-request (ARQ)
- Block fading
- Collaborative networks
- Hybrid ARQ
- Relay channel