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Whether consumers' risk perception differs or not when purchasing different services online? 115 participants were investigated to discover the differences in the lab experiment, and the results indicated that: a) Consumers perceived higher risk in buying professional services than mass services, interactive services, and supporting services online, while the differences among the latter three services...
The focus of this paper is on a delay based backoff scheme to support m-commerce over wireless local area network (WLAN). Based on the distributed coordination function (DCF) and the enhanced DCF (EDCF) mechanisms in IEEE 802.11 and 802.lie, a novel backoff scheme is proposed. The scheme is to solve the problem of the packets loss and the decrease of performance due to the increasing contention window...
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