Performance measurements for symmetrical services in wireless networks

New, Wee-Kiat; Chow, Chee-Onn

doi:10.1109/ispacs.2014.7024475

Cited by 2 publications

(1 citation statement)

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“…Nowadays, symmetrical services have found wide popularity and the demand to ameliorate the performance of such services is at its peak. The attribute of symmetrical services, however, does not adhere to the framework of the existing wireless infrastructure [2]. The existing framework cannot support symmetrical services efficiently since the resources are non-intersecting in uplink and downlink direction and therefore cannot guarantee the flow availability in both directions.…”

Section: Introductionmentioning

confidence: 99%

Resource allocation algorithm for symmetrical services in OFDMA systems

Swapna

Pillai

2020

IJEECS

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<p><span>The widespread acceptance of symmetrical services has urged for performance betterment techniques in wireless communication systems. In this paper, we propose an algorithm for resource allocation in MIMO-OFDMA system for applications that demand similar quality in uplink and downlink direction. The problem is formulated as multiobjective optimization problem with objectives to maximize the bidirectional data rates for individual users and to minimize the difference between the uplink and downlink data rate for each user. Fairness has been considered as a constraint in the optimization problem. The power allocation for each subcarrier in the OFDMA system is carried out using Linear Programming (LP) techniques, while the subcarrier allocation problem has been undertaken using an innovative multiobjective optimization technique that employs the concept of non-dominance in evolutionary algorithms. The results are extremely encouraging as they outperform the algorithms reported in literature using linear programming techniques or evolutionary algorithms solely. </span></p>

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Section: Introductionmentioning

confidence: 99%