Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 5 of 5 for “"hidden terminals"”.
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ZigZag decoding : combating hidden terminals in wireless networks
… presents ZigZag, an 802.11 receiver that combats hidden terminals. ZigZag exploits 802.11 retransmissions which, in the case of hidden terminals, cause successive collisions. Due to asynchrony, these collisions have different interference-free stretches at their start, which ZigZag uses to …
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Hidden Terminal Detection in Wide-Area 802.11 Wireless Networks
The hidden terminal problem is an important issue in wireless networks based on the CSMA medium access control scheme. Hidden terminals pose a complex challenge to network operators trying to identify the underlying cause of performance issues. This thesis describes new methods for the detection …
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Measurement and analysis of real-world 802.11 mesh networks
… of opportunistic routing, and the prevalence of hidden terminals. The size and diversity of our data set allow us to analyze claims previously only made in small-scale studies. In particular, we find that the SNR of a link is a good indicator of the optimal bit rate for that link, but that one …
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Efficient Packet Scheduling in Wireless Multihop Networks
… ""location dependent channel contention"" and ""hidden terminals"" make priority scheduling significantly different from that in wireless LANs. In this dissertation, we also discuss issues related to priority scheduling in multihop networks. A priority scheduling protocol is proposed to ensure …
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Improving Performance for CSMA/CA Based Wireless Networks
… is, even without inter-channel interference and hidden terminals, multi-hop mesh networks which aim to offer a both “high speed” and “large coverage” are not achieved. We propose the use of 802.11e’s TXOP mechanism to restore/enfore fairness. The proposed approach is implementable using …