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This paper firstly introduces a new architecture of two-hop relay OFDMA cellular network with load balancing, and then develops an analytic model of this system via two-dimensional Markov chains. In order to realize the load balancing, we propose one strategy: the hot cell borrows the idle sub-carriers from its neighboring cells through the relays and transfers users to neighboring cells. Finally,...
In LTE E-MBMS, the fundamental technique is single frequency network (SFN), which simplifies the design of receiver. Under the architecture of SFN, the spectral efficiency is constrained by the maximum transmission power of the base station. According to the evaluation results of LTE E-MBMS, the maximum achievable spectral efficiency is around 1bit/s/Hz, however which can not meet the LTE-A requirement...
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