Optimal resource management in OFDMA wireless networks to support multimedia traffic

Authors:
Kumar Dhananjay;Arivazhagan Kavitha;Durai Malathi;Muniyan Kasthuri
Affiliations:
Anna University Chennai, Chennai, India;Anna University Chennai, Chennai, India;Anna University Chennai, Chennai, India;Anna University Chennai, Chennai, India
Venue:
Proceedings of the 2010 ACM multimedia workshop on Mobile cloud media computing
Year:
2010

Citing 7
Cited 0

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Abstract

In this paper, we propose an optimal sub-carrier and power (OSP) algorithm that ensures weighted rate maximization while maintaining minimum rate and total power constraints for each user. A Lagrangian multiplier approach is used to solve this optimization problem. Lagrangian multiplier is found via modified searching method which ensures improvement in overall system throughput and bandwidth efficiency. We simulate our algorithm in two scenarios: with fairness and without fairness to support constant bit rate (CBR) and variable bit rate (VBR) of multimedia traffic. It is observe that OSP algorithm works well while maintaining fairness.