This paper addresses the downlink performance
of mobile WiMAX operating at 2.3GHz in an urban environment. The analysis includes a comparison of simulated and experimental results. Simulated packet error rate (PER) versus Signal to Noise Ratio (SNR) graphs are generated on a per link-speed basis using a fully compliant 512 carrier mobile WiMAX simulator. Experimental data is gathered using a carrier-class basestation, a mobile-WiMAX enabled laptop, and a suite
of application layer logging software. An H264 AVC encoder and IP packetisation unit is used to transmit video to a mobile client. Results show strong agreement in
terms of simulated and captured PER. Using this data, the downlink operating range is evaluated as a function of the Effective Isotropic Radiated Power (EIRP) and path loss
exponent. Results indicate that at low EIRP (32 dBm) the expected outdoor operating range is around 200-400m. Applying the UK OFCOM regulations for licensed operation in the 2.5GHz band, downlink operation in excess of 2km can be achieved.
Additional information: With accompanying conference presentation
Sponsorship: This work was partly funded by the Technology Strategy Board (TSB) under the VISUALISE project. The authors would like to thank Dr. James Chung How (ProVision
Communications Ltd), Dr. Pierre Ferre and David Halls for their key contributions to the measurement exercise
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Name of Conference: 19th International Symposium on Personal, Indoor and Mobile Radio Communications, 2008. (PIMRC 2008)
Venue of Conference: Cannes, France
- mobile WiMAX, 802.16e, packet error rate