Abstract—This paper investigates the performance of anadaptive beam-shaping (ABS) strategy for wideband codedivision multiple access (WCDMA) multicellular networkswith antenna arrays (AAs) at the base station (BS). Thepurpose of this ABS strategy is to form beams in directionsof increased traffic distribution while at the same timeminimize the total downlink transmission power.Performance is evaluated statistically with Monte Carlo(MC) simulations through a grid-enabled WCDMA systemlevel simulator in terms of achievable throughput per beamfor a network with up to four tiers of cells and increasedloading (up to 90%). Results are presented for multirateservices which show that the proposed ABS strategy canincrease the throughput per beam relatively to a fixed gridof beams sectorization strategy up to 75/120/165% with1/2/3 hotspots per cell respectively, while this gain is up to35% for uniform traffic distribution. Moreover, it is shownthat this gain can be achieved while at the same time theblocking probability in the central cell is reduced and theoverall throughput of the network increased.

IndexTerms—WCDMA, hospot areas, adaptivebeamforming, Monte Carlo simulations.

Cite: Panagiotis K. Gkonis, George V. Tsoulos, Georgia E. Athanasiadou and Dimitra I. Kaklamani, "An Adaptive Beam-Shaping Strategy for WCDMA Multicellular Networks with Non-Uniform Traffic Requirements," Journal of Communications, vol. 3, no.4, September, pp. 16-25, 2008.