Weikuo Chu

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The IEEE 802.11 family of specifications is by far the most prominent and successful technique for accessing WLANs. Because the channel used by wireless devices is a time-varying broadcast medium, these devices need to have multi-rate and rate-adaptive capability to adapt to the changing channel so that better performance can be achieved. In this paper, we(More)
The mobile ad hoc networks (MANETs) have received a lot of attention recently. While many routing protocols have been proposed for MANETs based on different criteria, few have considered the impact of multi-rate communication capability that is supported by many current WLAN products. Given a routing path, this paper provides an analytic tool to evaluate(More)
Power management is one of the most important issues in mobile communications. Much research has been done in reducing wireless station's power consumptions. IEEE 802.11 addresses this issue by adopting a MAC layer active-doze Power Saving Mechanism. In an 802.11 ad hoc network, this Power Saving Mechanism works as follows. Any wireless station with data to(More)
This paper presents an 802.11b Distributed coordinated function (DCF) approach that specifically concentrates on the multi-rate WLAN. In this approach we assume a saturated condition where every node in the network have a packet to transmit at any time and also a clear channel condition in which there is no hidden terminal in the network. This saturation(More)
Abstract. Power management is one of the most important issues in mobile communications. Much research has been done in reducing wireless station’s power consumptions. IEEE 802.11 addresses this issue by adopting a MAC layer active-doze Power Saving Mechanism. In an 802.11 ad hoc network, this Power Saving Mechanism works as follows. Any wireless station(More)
Route Throughput Analysis with Spectral Reuse for Multi-Rate Mobile Ad Hoc Networks Lien-Wu Chen†, Weikuo Chu†, Yu-Chee Tseng†‡, and Jan-Jan Wu§ †Department of Computer Science, National Chiao-Tung University Hsin-Chu, 30050, Taiwan Email: {lwchen, wkchu, yctseng}@cs.nctu.edu.tw ‡Department of Information and Computer Engineering, Chung-Yuan Christian(More)
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