Simulative Performance Evaluation of 802.15.4 with Different Modulations for Wireless Sensor Networks
Sukhvinder Singh Bamber, Ajay K. Sharma · 2011
This paper presents the simulative performance analysis of different modulations schemes for Signal/Noise (SNR), packets marked noise and Packet Loss Ratio (PLR) using IEEE 802.15.4 based OPNET simulative model for Wireless Sensor Networks (WSNs). It is proved that Minimum Shift Keying (MSK) is desirable in IEEE 802.15.4 WSN if SNR is to be maximized. Also it is proved that if packets marked noises are to be minimized then Binary Phase Shift Keying (BPSK) at the PAN (Personal Area Network) Coordinator & GTS (Guaranteed Time Slot) End Device and MSK at the Non GTS End Device should be preferred. Furthermore it is proved that if PLR is to be reduced to minimum then MSK at the PAN Coordinator and BPSK at the End devices should be preferred. Overall there is trade-off for the use of modulation schemes in 802.15.4 WSNs.