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Energy efficiency has become one of the key performance indicators for 5G wireless networks. Coordinated multipoint (CoMP) transmission/reception and multiinput single-output (MISO) are two technologies which can achieve higher energy efficiency in heterogeneous networks (HetNets) compared to conventional single-input single-out (SISO) systems. CoMP improves energy efficiency by joint transmission...
Base station (BS) sleeping has been proved to be an effective technique for saving energy consumption in cellular networks. However, BSs in sleeping mode might cause coverage holes, which have a negative impact on the connectivity of the network. In order to overcome this problem, we propose a combined coordinated multi-point (CoMP) transmission and BS sleeping scheme under the heterogeneous networks...
Simplification is a hot topic in the field of mesh modeling. Most of the algorithms are progressive, and generating the intermediate models makes the algorithms less efficient. Vertex clustering is generally adopted to reduce the sample points, but the error control is hard to achieve. This paper presents a novel fast simplification algorithm which is based on octree with quadratic approximation....
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