A Practical Hybrid-ARQ Protocol Using Noncoherent Orthogonal Modulation

Abstract— This paper considers hybrid-ARQ under the constraints of noncoherent orthogonal modulation and hard-decision decoding. Information theoretic bounds on the throughput for such systems are derived. A practical coding technique based on Reed-Solomon codes is proposed and analyzed. The proposed hybrid-ARQ protocol is modified to allow relay nodes to service retransmission requests. The proposed protocol is suitable for IEEE 802.15.4/Zigbee networks using commodity off-the-shelf hardware.

• Type: Conference
• Year: 2007
• Where: CISS
• Authors: Syed Amaar Ahmad, Matthew C. Valenti
• Keywords: CISS 2007, Information Theoretic Bounds, Noncoherent Orthogonal Modulation, Paper Considers Hybrid-ARQ