Optimizing the radio link protocol for TCP over UMTS-TDD radio interface

A major challenge of the UMTS paradigm is to offer a variety of access services, mostly targeted at multimedia and fast data communications. In this context, the support of Internet applications based on the TCP presents several open issues due to the wireless network segment. The aim of the presented study is to assess the performance of TCP data transfer over the TD-CDMA scheme of the UMTS TDD radio interface, by accounting for the main features of the radio channel and for the already standardized procedures and formats of MAC and Radio Link Control (RLC) protocols of the radio interface.