Downlink spectral efficiency evaluation with carrier aggregation in LTE-Advanced system employing Adaptive Modulation and Coding schemes

2013 ◽  
Author(s):  
Ibraheem Shayea ◽  
Mahamod Ismail ◽  
Rosdiadee Nordin
Keyword(s):  
Spectral Efficiency ◽  
Adaptive Modulation ◽  
Adaptive Modulation And Coding ◽  
Efficiency Evaluation ◽  
Carrier Aggregation ◽  
Coding Schemes ◽  
Lte Advanced ◽  
Advanced System

scholarly journals Handover Performance over a Coordinated Contiguous Carrier Aggregation Deployment Scenario in the LTE-Advanced System

2014 ◽  
Vol 2014 ◽  
pp. 1-15 ◽  
Author(s):  
Ibraheem Shayea ◽  
Mahamod Ismail ◽  
Rosdiadee Nordin ◽  
Hafizal Mohamad
Keyword(s):  
Spectral Efficiency ◽  
Carrier Aggregation ◽  
Lte Advanced ◽  
Ping Pong ◽  
Two Component ◽  
A Cell ◽  
Simulation Results ◽  
Outage Probabilities ◽  
Advanced System ◽  
Handover Performance

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

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