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Distributed stream processing relies on in-network operator placement to achieve an optimal resource allocation which can use the pool of machines and network resource efficiently. Due to the QoS (Quality of Service) constraints imposed by the application, operator placement is usually treated as an optimization problem with constraints. Trying to get a global optimization is challenging since it's...
Virtual MIMO (VMIMO) in the uplink communication system is a promising technique focused in recent years. It groups two or more user equipments (UEs) with individual antenna to construct a VMIMO channel communicating with a base station (BS) simultaneously in the uplink. In this paper we consider two UEs collaboration (2×2 VMIMO), and propose a novel pairing scheduling based on the SINR threshold...
This paper presents a bandwidth occupied time proportion fair MAC algorithm (BOTP-FMAC) for WLAN and wireless mesh network (WMN). It aims to address the unfairness problem in enhanced distributed channel access (EDCA) mechanism, in which higher-priority streaming traffic flows intend to severely deprive the access opportunity of lower-priority traffic flows due to the capture effect, especially when...
This paper proposed a new multi-metric dynamic priority MAC algorithm for 802.11e WLAN in order to fairly distribute the bandwidth among different kinds of traffic. Our main contribution is to dynamically adjust the priority of each queue and assign corresponding access parameters according to the value of priority function during update period. The waiting time of a packet in the queue and the ratio...
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