Ahmed, B. T.,  "On High Altitude Platforms (HAPs) UMTS-HSDPA",  Wireless Technology, 2006. The 9th European Conference on, pp. 223-226, Sept, 2006.

Ahmed, B. T., M. C. Ramon, and L. H. Ariet,  "On the UMTS-HSDPA in High Altitude Platforms (HAPs) Communications",  Wireless Communication Systems, 2006. ISWCS '06. 3rd International Symposium on, pp. 704-708, Sept, 2006.

Taha-Ahmed, B., M. Calvo-Ramon, and L. de Haro-Ariet,  "High altitude platforms (HAPs) W-CDMA system over cities",  Vehicular Technology Conference, 2005. VTC 2005-Spring. 2005 IEEE 61st, vol. 4, pp. 2673-2677 Vol. 4, May, 2005.

Taha-Ahmed, B., M. Calvo-Ramon, and L. de Haro-Ariet,  "Down-link analysis of a FDSS-GSM overlay system",  Vehicular Technology Conference, 2004. VTC 2004-Spring. 2004 IEEE 59th, vol. 5, pp. 2502-2506, May, 2004.

Ahmed, B. T., M. C. Ramon, and L. H. Ariet,  "LEO satellite W-CDMA downlink pole capacity",  Wireless Technology, 2004. 7th European Conference on, pp. 173-176, Oct, 2004.

Taha-Ahmed, B., M. Calvo-Ramon, and L. de Haro-Ariet,  "W-CDMA uplink capacity and interference statistics of a long tunnel cigar-shaped microcells (underground train case)",  Personal, Indoor and Mobile Radio Communications, 2004. PIMRC 2004. 15th IEEE International Symposium on, vol. 3, pp. 2231-2235 Vol.3, Sept, 2004.

Taha-Ahmed, B., M. Calvo-Ramon, and L. de Haro-Ariet,  "W-CDMA uplink capacity and interference statistics of a long tunnel cigar-shaped microcells",  Communications and Networks, Journal of, vol. 6, no. 2, pp. 106-111, June, 2004.

Ahmed, B. T., M. C. Ramon, and L. de Haro y Ariet,  "On the capacity and interference statistics of street W-CDMA cross-shaped micro cells in Manhattan environment (uplink analysis)",  Vehicular Technology Conference, 2003. VTC 2003-Spring. The 57th IEEE Semiannual, vol. 1, pp. 107-111 vol.1, April, 2003.

Ahmed, B. T., M. C. Ramon, and de. Haro L Ariet,  "On the capacity of air-ground W-CDMA system (downlink analysis)",  Vehicular Technology Conference, 2003. VTC 2003-Spring. The 57th IEEE Semiannual, vol. 1, pp. 103-106 vol.1, April, 2003.

Ahmed, B. T., M. C. Ramon, and L. H. Ariet,  "Quasi-optimum downlink power control of high altitude platform W-CDMA system",  Vehicular Technology Conference, 2003. VTC 2003-Spring. The 57th IEEE Semiannual, vol. 4, pp. 2476-2479 vol.4, April, 2003.

Ahmed, B. T., C. M Ramon, and de. Haro L Ariet,  "Capacity and interference statistics of highways W-CDMA cigar-shaped microcells (uplink analysis)",  Communications Letters, IEEE, vol. 6, no. 5, pp. 172-174, May, 2002.

Ahmed, B. T., M. C. Ramon, and L. de Haro y Ariet,  "The capacity of air-ground W-CDMA system (uplink analysis)",  Personal, Indoor and Mobile Radio Communications, 2002. The 13th IEEE International Symposium on, vol. 1, pp. 335-338 vol.1, Sept, 2002.