An Adaptive Redundancy Technique for Wireless Indoor Multicasting

In thispaper we present an adaptive technique that combines forward error correction (FEC) with channel state estimation (CSE)and automatic repeat request (ARQ)for packet loss recoveiy in wireless indoor multicast systems. The novel aspect of the technique is its ability to achieve signijicant packet throughput with high data reliabiliv, to avoidfeedback acknowledgement (ACK)implosion, as well as to reduceandflexibly to limit delayfor real-timeapplicutions. We suggest a set of criteria to measure the multicast performance and simulate a simple two-state indoor channel model. The simulation results show that the proposed technique signijicantly improves the communication quality and channel eficiency,to compare with traditional FEC and ARQ techniques.

• Type: Conference
• Year: 2000
• Where: ISCC
• Authors: Youzhi Xu, Tingting Zhang
• Keywords: Channel State Estimation, Communications, Indoor Multicast Systems, ISCC 2000, Two-state Indoor Channel