Abstract:
With the advancement in wireless technologies for better quality of service and
connectivity, seamless roaming capability for unmanned ground vehicle (UGV) have
been the focus of research. To provide mobility features in a network, handoff
management techniques are utilized based on the multiple network parameters and
decision criteria. The research describes recently used methodologies for handoff
involving single to multiple network parameters. The focus of the research is utilizing
fuzzy technique for order performance by similarity to ideal solution (F-TOPSIS)
based handoff decision making algorithm with six parametric weights i.e., received
signal strength indicator (RSSI), bandwidth, signal to interference & noise ratio
(SINR), network delay, data loss, and bit error rate, calculation using fuzzy analytical
hierarchal process (FAHP) involving three traffic classes i.e., video, control, and
background. Three decision metrices for network, mobile node, and user preference,
are used in decision making algorithm by evaluating performance coefficient of
available networks based on their respective distance from best and worst ideal
solutions. Handoff criteria-I and II based on difference of performance value and its
percentage respectively are proposed to manage handoff decision making process.
Performance analysis of handoff criteria-I & II is done based on different
environmental conditions with varying threshold and best performance values to
reduce the number of unnecessary handoffs and handoff response time. The network
classification based on performance value from proposed technique is compared to
traditional TOPSIS and suitable threshold value reduces the number of unnecessary
handoffs and response time without affecting the handoff performance
