A Combined Design to Provide QoS for Mobile Ad Hoc Networks

Xu, Mingxia; Zhao, Minjian; Shen, Wei; Huang, Aiping

doi:10.1109/vetecf.2007.317

Cited by 1 publication

(1 citation statement)

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“…Some Cross-layer based MAC protocols have been proposed in recent years. Literature [3] combines certain routing and MAC control information, and wakes up sleeping nodes at the transmitting path of packets, but it provides nodes equal opportunities to access channel, without regard to transmission order or data amount. Literature [4] gets the next hop information to avoid awakening nodes out the transmission path, but it is for the purpose of energy conservation.…”

Section: Introductionmentioning

confidence: 99%

A cross-layer based TDMA protocol for wireless biomedical sensor networks

Zeng

Zhang

Wang

2012

2012 5th International Conference on BioMedical Engineering and Informatics

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In WBSN, it is important to ensure that packets can be sent to the medical centre reliably and efficiently. There have been numerous solutions adopting CSMA/CA to access networks. However, CSMA/CA can't give delay guarantee or QoS guarantee. TDMA can solve the problem, but TDMA takes no account of transmitting order so that it limits the improvement of network performance. This paper presented Q-TDMA, a cross-layer based TDMA protocol which allocates slots by virtual wireless links. Based on DSR routing information, Q-TDMA builds virtual wireless links, and allocates links to data flow. Q-TDMA also counts packets buffered in LLC queue to adjust priority and then adjust schedule dynamically. The simulation result shows that Q-TDMA performs better than TDMA. It's especially applicable to guarantee QoS for urgent data transmission in WBSN.

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Section: Introductionmentioning

confidence: 99%