Abstract
In this paper, we propose a new type of hybrid ARQ protocol, in which a channel-adaptive variable rate channel coding scheme is combined with a multi-copy retransmission strategy so as to enhance the system performance under the delay constraint of real-time ATM services in broadband radio access networks. The main feature of a multi-copy retransmission strategy in this scheme is to improve the average throughput for a given Forward Error Correction (FEC) rate, subject to the prescribed cell loss requirement of the real-time wireless ATM services, while augmenting the reliability of channel state information required for a channel-adaptive FEC scheme. Our analysis shows that under a harsh fading channel, the proposed approach is useful for achieving the prescribed cell loss performance without significantly degrading the average throughput performance.
Original language | English |
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Pages (from-to) | 2797-2804 |
Number of pages | 8 |
Journal | IEICE Transactions on Communications |
Volume | E84-B |
Issue number | 10 |
Publication status | Published - 2001 Oct |
Keywords
- Channel-adaptive FEC
- Hybrid ARQ
- Multi-copy retransmission
- Real-time ATM services
ASJC Scopus subject areas
- Software
- Computer Networks and Communications
- Electrical and Electronic Engineering