Date Added: Nov 2009
Software Communication Architecture (SCA) provides a framework for developing Software Defined Radios (SDR). Theoretically, SCA compliant SDRs are supposed to have the capability of self-configuring and switching from one wireless protocol to any other. However, conventional SDRs running standard upper layer protocol stack fail to switch wireless protocols on the fly retaining all the connections and incur large delay. In this paper, the authors propose a mechanism for wireless protocol switching that is free from these problems. They base their approach on dual or multiple antennas operable by SDR software.