Electrical Engineering, Physics
We report on peer-to-peer large-scale wireless channel characteristics for an urban environment in six public-safety bands, for five simultaneous receiving sites. Results are based upon measurements taken in Denver in July 2009 with stationary receivers and a pedestrian transmitter. The six frequencies at which we measured are (in MHz) 430, 750, 905, 1834, 2400, and 4860. We quantify both site and frequency diversity, and show that 5-site selection yields minimum average gains of 15 dB in mean received power levels; 5-site selection diversity also reduces received power variation by 17-29 dB, depending on frequency. Frequency diversity yields similar gains. By approximating received powers as lognormal, we describe an analytical method to approximate the cdf of the per-site, or per-frequency (or both) maximum received power. These data and diversity models should be useful for public-safety and ad hoc communication system designers, and for cooperative diversity schemes, wherein multiple users act as a virtual array.
Postprint version. Published in IEEE Transactions on Wireless Communications, Volume 13, Issue 4, 2014, pages 2025-2033.
© IEEE Transactions on Wireless Communications, 2014, IEEE
Matolak, D., Holloway, C., Remley, K., Zhang, Q., Wu, Q. (2014). Large-Scale Site and Frequency Diversity in Urban Peer-to-Peer Channels for Six Public Safety Frequency Bands, IEEE Transactions on Wireless Communications, 13(4), 2025-2033.