Joint Carrier Aggregation and Scheduling for multi Service in LTE –Advanced

Abstract

LTE an initialize of Long Term Evaluation, marketed as 4G LTE is standard for wireless communication of high data rate, increasing the capacity and speed using different radio interface together with core network improvement. In today‟s wireless communication systems, it is required to view video, listen to audio, browse the internet, upload media and use cloudbased services that will make high demands of data rates. However, it is very difficult to achieve such high data rates using conventional Communication method without increasing the bandwidth. In those methods use bandwidth by each user in band that may be not sufficient to offer the required data rate, while there is unused bandwidth in other or same band. There is need for new scheme to effectively utilizing the available bandwidth in same or different frequency bands. In this research using joint carrier aggregation with scheduling algorithm, it is possible to utilize more than one block of subcarrier and in this way increase the overall transmission bandwidth. The effectiveness of joint carrier aggregation and scheduling algorithm is investigated by using MATLAB code written in m-file. It provides high throughput for multi user for VOIP by about (250%), for video by about (175%). In addition, it improves bandwidth utilization for multi user for VOIP by about (300%), for video by about (287.5%) as compared with no carrier aggregation. Further, it also enhances the spectral efficiency for multi user for VOIP by about (13%), for video by about (71.4%). Lastly, the average delay performance also decrease for multi user for VOIP by about (76%), for video by about (73%) as compared with no carrier aggregation used.