Performance prediction of WLAN speech and image transmission

摘要: The effects of multipath, noise, and cochannel interference on performance are shown for two wireless local area networks (WLAN). Measured impulse responses from an office environment provided the multipath distortion. first WLAN system uses frequency hopped (FH) Gaussian shift keying (GFSK) second direct sequence (DS) differential binary phase (DBPSK). Both modulations part proposed IEEE 802.11 standard. Vocoded speech image quality were predicted systems through software simulation by relating classes to following channel operational parameters: bit error rate (BER), signal-to-noise ratio (SNR), carrier-to-interference (CIR). Experimental results summarized overlaying vocoded a BER, SNR, CIR graph.