User Mobility Pattern Based TCP for Wireless Cellular Networks

Ayhan Emre

Computer Engineering Department
Turkish Naval Academy, Naval Science & Engineering Institute,
Istanbul, Turkey
aemre@dho.edu.tr

Vedat Coskun

Computer Engineering Department
Turkish Naval Academy, Naval Science & Engineering Institute,
Istanbul, Turkey
vedatcoskun@dho.edu.tr

Erdal Çayırcı

Naval Operations Department
Turkish Military Academy, Istanbul
Istanbul, Turkey
erdal@ece.gatech.edu

Abstract

In this paper, we introduce User Mobility Pattern based TCP (U-TCP), a middleware between application and transport layers that uses existing TCP protocols in the transport layer. The cells expected to be visited and the predicted cell entry times are given by the UMP based location management scheme. The window advertisement and slow start processes can be completed before the handoff by establishing warm-up TCP connections for the cells expected to be visited. Hence, the call termination rates, jitter and the impact of mobility on TCP connections are reduced.