Document Type
Thesis
Date of Award
Spring 5-31-2003
Degree Name
Master of Science in Computer Engineering - (M.S.)
Department
Electrical and Computer Engineering
First Advisor
Nirwan Ansari
Second Advisor
Dionissios Karvelas
Third Advisor
Sirin Tekinay
Abstract
This thesis discusses the techniques to improve the TCP over wireless. The loss-intensive wireless communication results in high retransmission rates to recover lost packets and bandwidth consumption. In addition, the retransmitted segments have significant chance of being dropped. To make the retransmission process more granular, large segments at the transport layer (540 bytes, by default) can be subdivided into smaller sub-segments. This document introduces a split TCP based solution and describes how to produce a series of smaller-sized segments that share the same transport layer header. A new header format is introduced to support the transmission of smaller segments and to conserve bandwidth during transmission. The NACK-based message exchange method is adopted with a special windowing protocol to achieve reliability, flow-control, and efficient buffer handling. The simulation results indicate that use of sub-segments improves latency, throughput, bandwidth, power and other measurements. In addition to that, an analytical model is developed to study the influence of sub-segmentation over latency and throughput.
Recommended Citation
Sengupta, Som, "Sub-segment based transport layer protocol for wireless medium" (2003). Theses. 635.
https://digitalcommons.njit.edu/theses/635
