An Implementation and Experimental Study of the Variable-Structure Congestion Control Protocol (VCP)

The Variable-structure Congestion control Protocol (VCP) has been proposed as an alternative approach to the eXplicit Control Protocol (XCP). In the authors' earlier work, they reported the NS2 simulation results of cross-layer profiling studies of VCP, XCP, and TCP+REM in encrypted wireless networks. Their studies utilized finite-state Markov chains to model bit error characteristics of wireless links and applied per packet link layer FEC codes in order to compensate for such errors. Their simulation results showed that VCP takes a significant step toward addressing the tradeoff between the performance and practicality of implementation.