Performance Analysis of Multi-carrier Aggregation with Adaptive Modulation and Coding Scheme in Lte-advanced System
نویسندگان
چکیده
Although LTE-Advanced system is targeted at enhancing the users’ throughput and increasing connection reliability, however user’s mobility tends to degrade the efficiency of the services and applications in terms of throughput degradation and outage probability reduction. Particularly this is during the handover from the source to the target eNBs. Therefore, the Carrier Aggregation (CA) technique is based on different numbers of Components Carrier (CCs) utilizing AMC scheme is implemented in this paper in order to further enhance the system performance. A simple mathematical formulation for user’s throughput and outage probability evaluation are derived and then used in the simulation for random mobility. It has shown that, the integration of CA and AMC (CA-AMC) on the downlink significantly outperforms systems either by employing CA with common Modulation and Coding Schemes (MCSs) or that by implementing NonCA technique with MCSs or AMC scheme in terms of throughput and outage probability. The total throughput gains achieved by CA-AMC integration are 50 to 80% over non-CA employed AMC when between 2 to 5 CCs are used respectively with AMC integration. Similarly, the total user’s outage probability is improved when the number of CCs is increased with AMC integration.
منابع مشابه
LTE-A Multi-hop Network with Zero Link Overflow Utilizing OTFWC Scheduling
Abstract Multi-hop Relay networks are proposed to fulfill the demanding coverage and capacity requirements for current applications in a cost efficient way. It can be used in IMT-Advanced technologies such as 3GPP LTEAdvanced. In this paper, Resource Blocks (RBs) proposed scheduling scheme is considered for zero multi-hop links overflow in Uplink LTE-Advanced. Then based on this scheduling sche...
متن کاملUplink LTE-A Performance Improvement Using Synchronous Direct and Multi-hop Transmission
Abstract Multi-hop Relay networks are proposed to fulfill the demanding coverage and capacity requirements for current applications in a cost efficient way. It can be used in IMT-Advanced technologies such as 3GPP LTEAdvanced. In this paper, LTE-A Uplink performance will be improved using Synchronous direct and multi-hop transmission (SDMT) between user equipment and Base Station. Also the effe...
متن کاملA Lightweight and Accurate Link Abstraction Model for the System-Level Simulation of LTE networks in ns-3
In this work we present a link abstraction model for the simulation of downlink data transmission in LTE networks. The purpose of this model is to provide an accurate link performance metric at a low computational cost by relying solely on the knowledge of the SINR and of the modulation and coding scheme. To this aim, the model combines Mutual Information-based multi-carrier compression metrics...
متن کاملA Novel LTE-Advanced Carrier Aggregation with Higher Throughput
Carrier Aggregation (CA) is one of the important features of Long Term EvolutionAdvanced (LTE-Advanced), which is being standardized in Third Generation Partnership Project (3GPP) as part of LTE Release 10. This study also presents throughput results based on different parameters; Beyond 20 MHz, the only reasonable way to achieve LTE-Advanced highest target peak-throughput rate is to increase t...
متن کاملAn Enhanced Feasible Adaptive Scheduling Algorithm for 3GPP LTE-Advanced System
The Third Generation Partnership Project (3GPP) initially defined Release-8 as the first standard of the Long Term Evolution (LTE), a novel high-speed all-IP wireless access technology for mobile communication system using OFDMA and MIMO as native technologies. However, even this high-speed technology was found incapable of meeting true IMT-Advanced 4G requirements. As such, Release-10 Release1...
متن کامل