C. B. Akki

Work place: Wipro Technologies, Bangalore, India

E-mail: channappa.akki@wipro.com


Research Interests: Computer systems and computational processes, Computer Architecture and Organization, Computer Networks


C. B. Akki received his Bachelor degree in Electrical Engineering from University Vishvesvaraiah College of Engineering, Bangalore, India in 1982. He has received his Master degree and Ph.D in Computer Science and Technology from University of Roorkee, India in 1990 and 1997 respectively. He is currently Senior Architect at Talent Transformation division of Wipro Technologies, Bangalore, India. He has both academic and industrial experience in India and abroad. His special interests are Wireless Communications, Mobile Computing and Computer Networks.

Author Articles
A Fair Downlink Scheduling Algorithm for 3GPP LTE Networks

By S. M. Chadchan C. B. Akki

DOI: https://doi.org/10.5815/ijcnis.2013.06.05, Pub. Date: 8 May 2013

Long Term Evolution (LTE), the standard specified by 3GPP on the way towards the fourth generation mobile networks, is intended to deliver high speed data and multimedia services to next generation mobile users. The Radio Resource Management (RRM) plays a very crucial role in managing limited radio resources to enhance system's data rate and to ensure quality of service (QoS) provisioning in both uplink and downlink. LTE downlink scheduling is a RRM entity that is responsible for the allocation of shared radio resources among mobile user equipment (UEs). One of the challenges that need to be addressed in downlink scheduling algorithms is to provide higher spectral efficiency with fairness ensured to all its users. This paper proposes a novel downlink scheduling algorithm which balances its performance between efficiency (in terms of throughput) and fairness to users. The algorithm makes use of Assignment Model for resource allocation to all the selected users during each Transmission Time Interval (TTI). The proposed algorithm is simulated and the simulation results are compared with three techniques proposed in literature. The simulator results show that the new algorithm balances well between throughput and fairness.

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Congestion Control in 4G Wireless Networks Using Coalition Game

By S. V. Saboji C. B. Akki

DOI: https://doi.org/10.5815/ijcnis.2012.05.05, Pub. Date: 8 Jun. 2012

In 4G-domain multi home mobile host (MH) will have access to different wireless networks. In this 4G wireless networks real time applications are initiated to support services like VOIP, videoconference. These applications use RTP over UDP. These protocols are unresponsive to congestion events. Our proposed congestion management scheme minimizes congestion level in 4G domains using coalition game. Its main objective is to decide target networks for handoff with minimum congestion level. Our mechanism is based on the coalition game formation. It aims at maximizing the utilization of the resources available and meeting QoS requirement of users as much as possible. This will reduce congestion level with vertical handoff initiation.

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