Goodput Analysis and Link Adaptation for IEEE 802.11a Wireless LANs
IEEE Transactions on Mobile Computing
Performance of multihop wireless networks: shortest path is not enough
ACM SIGCOMM Computer Communication Review
Minimum energy reliable paths using unreliable wireless links
Proceedings of the 6th ACM international symposium on Mobile ad hoc networking and computing
IEEE Transactions on Mobile Computing
Wireless Communications & Mobile Computing - Mobile IP
Dynamic optimal fragmentation with rate adaptation in wireless mobile networks
Dynamic optimal fragmentation with rate adaptation in wireless mobile networks
Wireless Communications & Networking
Wireless Communications & Networking
IEEE Transactions on Wireless Communications
Saturation throughput analysis of IEEE 802.11e enhanced distributed coordination function
IEEE Journal on Selected Areas in Communications
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Three factors have been often shown to significantly affect the reliability of real-time transmission in wireless local area networks--transmission rate, power, and packet size. We analyze these factors and determine the optimal combination of factors subject to time constraints that yields the most reliable transmission of real-time data. We propose a cross-layer framework to jointly design the routing and MAC protocol combined with our optimization approach. The approach under a non-real-time routing protocol that produces a path metric is compared with a real-time routing protocol. Additionally, the real-time routing protocol enhances a guaranteed rate with our approach. Our experiments reveal that real-time performance in terms of miss ratio and throughput is significantly increased in lossy link and heavy traffic environments. Miss ratio and average throughput are improved by up to 25% over existing real-time routing protocols and 30% over a MAC protocol, respectively.