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In vehicular Ad-hoc network (VANET), many multi-hop broadcast schemes are employed to widely propagate the warning messages among vehicles and the key is to dynamically determine the optimal relay vehicle for retransmission. In order to achieve reliable and fast delivery of warning messages, this paper proposes a delay-aware and reliable broadcast protocol (DR-BP) based on transmit power control technique...
The aim to raise customer loyalty in telecom market requires an emphasis on one-to-one marketing and personalized services. To this end, it is essential to understand individual customer preferences for services. In this paper an improved fast hierarchical clustering algorithm (IFHCA) is proposed firstly. Then a method for identifying dial-up user preferences based on IFHCA is presented, in order...
Energy saving and fast responding of data gathering are two crucial factors for the performance of wireless sensor networks. A dynamic tree based energy equalizing routing scheme (DTEER) was proposed to make an effort to gather data along with low energy consumption and low time delay. DTEER introduces a dynamic multi-hop route selecting scheme based on weight-value and height-value to form a dynamic...
Clustering routing protocols excel in several aspects of wireless sensor networks (WSNs). This article proposes a clustering and multihop routing protocol (CMRP). In CMRP, a node independently makes its decision to compete for becoming a cluster head or join a cluster, according to its residual energy and average broadcast power of all its neighbors. To minimize the power consumption of the cluster...
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