Analyzing the Coexistence of IEEE802.11g Systems with IEEE802.15.4 WPAN Systems
Meghalatha CK1, B. Seetha Ramanjaneyulu2

1Meghalatha CK, Department of ECE, VFSTR, Guntur (A.P), India.
2B. Seetha Ramanjaneyulu, Department of ECE, VFSTR, Guntur (A.P), India.
Manuscript received on 14 February 2019 | Revised Manuscript received on 05 March 2019 | Manuscript Published on 08 June 2019 | PP: 408-412 | Volume-7 Issue-5S4, February 2019 | Retrieval Number: E10860275S419/19©BEIESP
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Abstract: With the increasing demand of smart wireless devices, which operate in the 2.4GHz ISM band using different technologies such as IEEE 802.11g (Wi-Fi) and IEEE 802.15.4 (ZigBee), it becomes necessary to understand the impact of their coexistence on the performance of the involved heterogeneous networks. The coexistence performance of these technologies basically depends on factors like the spread spectrum employed, transmission powers, data rates, payload, message length, type of modulation etc. In this work, coexistence is analyzed based on transmission power and traffic scheduling techniques that reduce interference between wireless devices (WLAN and WPAN) operating in the 2.4GHz ISM band. Simulation studies are carried out using OMNET++ with varying values of channel power, traffic scheduling, Bandwidth, Message length and data rate. From the simulations it is observed that the device powers beyond a limit cause packet failures of other devices to increase exponentially, which in turn indicates the allowed power levels suitable to the environment.
Keywords: Coexistence, Channel Access, Traffic Scheduling, Bandwidth Utilization, Opportunistic Access, Spectrum Allocation.
Scope of the Article: Cyber Physical Systems (CPS)