Cross-layer Optimization Resource Allocation in Wireless Networks

Abstract

The rapid increase of the Internet and wireless communication in the past few years has made personal communication easier and less. The use of potable wireless devices for example smart phones and PDAs is on the increase. Video conferencing, and Multimedia streaming are expected to attract an increasing number of users in the nearest possible future. The requirement for such applications to run efficiently and effectively would be availability of higher resources, such as processing power, high battery life and data rate capabilities, just to mention a few. The TCP/IP protocol suite provides the protocols which is the standard for communications in the Internet today. However, they are not suitable for the next generation wireless devices and the mobile systems; this performance degradation is due to the limitations of wireless medium in terms of bandwidth, information loss, and latency which will be looked at in this paper. This paper compares the delay time of real time and non-real time traffic using two algorithms. Maximum Weighted Capacity uses a cross-layer optimization to share resources, while Maximum Capacity allocates resources based only on the users channel capacity.

Keywords: Cross-layer optimization, TCP/IP, Maximum Capacity, Maximum Weighted Capacity, channel capacity