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This paper addresses the scheduling problem for multiuser multi-input multi-output (MU-MIMO) system based on Tomlinson-Harashima Precoding (THP). By considering the channel gain and channel correlation jointly, a low-complexity multiuser scheduling approach is proposed. Compared with the existing scheduling schemes, the proposed scheme can avoid complicated searching process, and thus reduce the scheduling...
In opportunistic networks, mobile nodes are enabled to communicate with each other even if a route connecting them never exists. Because nodes are not supposed to possess any knowledge about the network topology, each single node acts as a gateway and uses its local knowledge to decide next hop when forwarding messages. It is necessary to find those nodes who can spread messages more efficiently to...
A dynamic policy based network management scheme is presented for the problem that traditional policies can??t preferably adapt to change of network state. It defined dynamic policy form and appended new module PMA to IETF policy frame to improves the adaptability of policie. Then the application of dynamic policy to allocate resource is presented. By experiment and analysis, it is shown that this...
The paper points out problems in some existing themes,and puts forward a new method for predicting the mobile path based on pattern mining and matching, called PMM.The paper compares the performance of the PMM with Order-k Markov predictors using a trace of the mobility patterns of 1,200 users on real Wi-Fi wireless network.And the result shows that this method can achieve a relatively perfect predicting...
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