Channel modeling for 2 GHz band urban line-of-sight street microcells

The paper proposes a channel model for LOS street microcells with low antenna height base sites. This channel model assumes some virtual source point (VSP) and locates then at the intersection points along the LOS street and building walls under the LOS condition, and so is developed as a location-specific model. The predicted delay spread has excellent agreement with experimental results when the VSP attenuation constant is 0.07. Using the proposed model, the bit error rate (BER) performance of /spl pi//4-shift DQPSK transmission with and without diversity reception can be evaluated. Its effectiveness is confirmed by field experiments.

[1]  Tatsuo Furuno,et al.  Time Delay Spread for Low Antenna Height Microcellular System , 1993 .

[2]  Tatsuo Furuno,et al.  Time Delay Spread in Microcellular Environment for Personal Communication Systems (Special Issue on Personal Communications) , 1996 .

[3]  Theodore S. Rappaport,et al.  Research in site-specific propagation modeling for PCS system design , 1993, IEEE 43rd Vehicular Technology Conference.

[4]  E. Green,et al.  Microcellular Propagation Measurements In An Urban Environment , 1991, IEEE International Symposium on Personal, Indoor and Mobile Radio Communications..

[5]  D.L. Schilling,et al.  Urban/suburban out-of-sight propagation modeling , 1992, IEEE Communications Magazine.

[6]  Theodore S. Rappaport,et al.  Path loss, delay spread, and outage models as functions of antenna height for microcellular system design , 1994 .

[7]  J.-P. Rossi,et al.  Propagation analysis in cellular environment with the help of models using ray theory and GTD , 1993, IEEE 43rd Vehicular Technology Conference.

[8]  A. J. Dagen,et al.  Results of propagation loss and power delay profile measurements in an urban microcellular environment , 1992, [1992 Proceedings] The Third IEEE International Symposium on Personal, Indoor and Mobile Radio Communications.

[9]  D.M.J. Devasirvatham,et al.  Radio propagation studies in a small city for universal portable communications , 1988, 38th IEEE Vehicular Technology Conference.

[10]  F. Adachi,et al.  BER performance of QDPSK with postdetection diversity reception in mobile radio channels , 1991 .