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The overall goal of the EARTH project is to identify concepts that will further improve the energy efficiency of wireless access networks. This paper elaborates on radio node level issues addressed by the project. The focus is on radio base station components and radio link concepts to adopt the potential for energy efficiency offered by holistic joint optimisations. A new class of power efficient...
We consider a downlink resource allocation problem for two systems or cells each consisting of a base station and multiple mobile stations. Each cell operates on a protected band for exclusive use and a band shared with the other cell. On simultaneous transmission in the shared band, the two systems disturb one another with interference. The strategies of the systems are their choices of power allocations...
Generally handover can be divided into two kinds, hard handover and soft handover, according to the connection situation with the base station. In the overlapped coverage area, while hard handover will cause more packet lost and handover cost, and soft handover can provide seamless handover performance. The soft handover can be implemented either in link layer or network layer. A novel IP layer packet...
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