Katarzyna Kosek

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The paper presents a preliminary study of a revised analysis of IEEE 802.11e performance. One of many possible topologies is analyzed in order to emphasize the severe problem of the incapability to prioritize traffic in networks with hidden nodes. The article also provides some innovative conclusions.
† The work described in this paper is based on results of IST FP6 Integrated Project DAIDALOS. DAIDALOS receives research funding from the European Community's Sixth Framework Programme. Apart from this, the European Commission has no responsibility for the content of this paper. The information in this document is provided as is and no guarantee or(More)
In multirate ad-hoc networks, mobile stations usually adapt their transmission rates to the channel conditions. This paper investigates the behavior of IEEE 802.11b/g cards in a multirate ad-hoc environment. WLAN network cards from different vendors are analyzed. The theoretical upper bound estimation of the throughput in multirate ad-hoc networks is(More)
This paper explains the problem of hidden terminals and gives a short overview of the most known solutions minimizing their impact on IEEE 802.11 network performance. Additionally, the paper presents a preliminary simulation study of one of the possible wireless scenarios (i.e., a star topology) based on the IEEE 802.11e standard. The scenario consists of(More)
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