Title :
Performance Analysis and Parameter Optimization of Random Access Backoff Algorithm in LTE
Author :
Yang, Xiaobin ; Fapojuwo, Abraham O. ; Egbogah, Emeka E.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Calgary, Calgary, AB, Canada
Abstract :
This paper studies the performance of random access backoff algorithm in Long Term Evolution (LTE) system, taking the physical loss into account. Analytical results are developed for system performance metrics including throughout, drop probability and medium access delay. All these analytical results are verified with simulation. Performance of the backoff algorithm under different parameter settings is compared in a typical scenario of LTE. The performance results provide useful insights on optimal backoff parameter settings. For example, under a physical loss probability of 1%, the optimal backoff window size should be set to 1 and the attempt limit set to 2 or 3.
Keywords :
Long Term Evolution; LTE; drop probability; long term evolution; medium access delay; optimal backoff parameter settings; optimal backoff window size; parameter optimization; performance analysis; physical loss probability; random access backoff algorithm; Algorithm design and analysis; Analytical models; Delay; Propagation losses; Standards; Telecommunication traffic; Throughput;
Conference_Titel :
Vehicular Technology Conference (VTC Fall), 2012 IEEE
Conference_Location :
Quebec City, QC
Print_ISBN :
978-1-4673-1880-8
Electronic_ISBN :
1090-3038
DOI :
10.1109/VTCFall.2012.6399192