The principle parameter used to make the handoff initiation decision is the received signal strength (RSS); four techniques are available to decide the necessity to initiate a handoff request, which are: Relative signal strength, Relative signal strength with threshold, Relative signal strength with hysteresis, Relative signal strength with hysteresis and threshold (Tranter, Shanmugan, Rappaport, & Kosbar, 2004; Lee, 2006; Mullett, 2006). Handoff algorithms, for WLAN has also been investigated (Kwon & Lee, 2004).