Performance Evaluation of Coexistence of WiFi and LTE Licensed-Assisted Access to Unlicensed Spectrum using Markov chain Analytical Model
Vijaya Kumar Padarti1, Venkateswara Rao Nandanavanam2

1Vijaya Kumar Padarti*, ECE  Department, V. R. Siddhartha Engineering College Vijayawada, India.
2Dr. N. Venkateswara Rao, ECE  Department, Bapatla Engineering College, Bapatla, India.
Manuscript received on July 20, 2019. | Revised Manuscript received on August 10, 2019. | Manuscript published on August 30, 2019. | PP: 2032-2037 | Volume-8 Issue-6, August 2019. | Retrieval Number:F8705088619/2019©BEIESP | DOI: 10.35940/ijeat.F8705.088619
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Abstract: LTE with the inclusion MIMO renders high data rate, we introduce a model for system performance evaluation considering typical coexistence of LAA LTE and WiFi. Currently, as the need for high bandwidth to satisfy high data rate demanding services increased significantly over the years, the operators are thinking about various answers for incrementing system limit. As the authorized range has been costly, utilizing LTE in the unlicensed spectrum will be a hopeful strategy to oblige trade requirement for versatile information. Expecting that LAA eNBs perform CCA as a similar way to WiFi CSMA, we utilize Markov chain to help assess the influenced execution of WiFi as well as the connection between the joint framework execution and LAA most extreme transmission time. Nonetheless, LTE needs to exist together with different heterogeneous system, particularly WiFi, prior in the unlicensed medium.
Keywords: LTE-LLA, MIMO, Markov Chain Model, LBT,BER, Throughput, SINR