Although various carrier aggregation deployment scenarios (CADSs) have been introduced in the LTE-Advanced system, issues\nrelated to insufficient eNB coverage that leads to low throughput and high drop call have yet to be solved. This paper proposes a\nnew deployment scenario called coordinated contiguous-CADS (CC-CADS), which utilizes two-component carriers (CCs) that\noperate on two frequencies located in a contiguous band. Each CC antenna is directed to a cell boundary of the other CC. The\nhandover performance of users with various mobility speeds under CC-CADS has been investigated and compared with various\ndeployment scenarios proposed by 3GPP. Simulation results show that the received signal reference power (RSRP) enhancement\nand performed handover, ping-pong, drop call, and outage probabilities reductions in CC-CADS outperformed the 3GPP�s CADSs,\nthus leading to reduced interruption time, improved spectral efficiency, and seamless handover.
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