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System information (SI) acquisition is a mandatory component for inbound handover (HO) to closed subscriber group femtocells in LTE/LTE-Advanced networks. In this paper, we analyze theoretically and numerically several existing SI acquisition schemes such as scheduled, semi scheduled and autonomous SI acquisition scheme. We found that using those schemes can result in long measurement gaps; which...
Due to the increasing demand for higher data rates by mobile users, the deployment of femtocells under macro coverage has been adopted by 3GPP LTE-Advanced systems as one of the main proposals to enhance the network performance in the respects of coverage and capacity improvement especially for indoor users. However the random deployment of femtocells raise the issue of interference between macrocell...
The emerging Long Term Evolution (LTE) network standard utilizes the “break - before - make” mechanism in the downlink handover. However, the mechanism is subjected to many difficulties in handover decisions, thus resulting in low throughput and high latency. This paper overview mobility management and downlink handover procedure being adopted in the LTE/LTE-Advanced downlink. A new proposed Multi-Layer...
Recently, Long-Term Evolution (LTE) is the result of ongoing work by the Third Generation Partnership Project (3GPP) toward Fourth Generation (4G) systems. LTE will be used for mobile, fixed and portable wireless broadband access, and will offer several benefits to operators, aimed at increasing capacity, reducing network complexity and thus lowering deployment and operational costs. It will enable...
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