Open AccessHybrid model for throughput evaluation of orthogonal frequency division multiple access networks
Author(s) -
Mahato Shyam Babu,
Van Do Tien,
Allen Ben,
Liu Enjie,
Zhang Jie
Publication year - 2014
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2013.0260
Subject(s) - throughput , computer science , performance metric , metric (unit) , range (aeronautics) , interval (graph theory) , orthogonal frequency division multiple access , event (particle physics) , algorithm , computer network , mathematics , telecommunications , orthogonal frequency division multiplexing , wireless , engineering , operations management , management , combinatorics , economics , aerospace engineering , channel (broadcasting) , physics , quantum mechanics
Data throughput is an important metric used in the performance evaluation of the next generation cellular networks such as long‐term evolution (LTE) and LTE‐advanced. To evaluate the performance of these networks, Monte Carlo simulation schemes are usually used. Such simulations do not provide the throughput of intermediate call state; instead it gives the overall performance of this network. The authors propose a hybrid model consisting of both analysis and simulation. The benefit of this model is that the throughput of any possible call state in the system can be evaluated. Here, the probability of possible call distribution is first obtained by analysis, which is used as input to the event‐driven‐based simulator to calculate the throughput of a call state. Comparison is made between throughput obtained from the author's hybrid model with that obtained from event‐driven‐based simulation. Numerical results are presented and show good agreement between both the proposed hybrid model and the simulation. The maximum difference of relative throughput between their hybrid model and the simulation is found in the interval of (0.04 and 1.06%) over a range of call arrival rates, mean holding times and number of resource blocks in the system.