Availability of efficient, reliable and reasonably simple procedures providing assistance in evaluating human exposure to radiofrequency fields from base station antennas is essential for mobile communications. In this paper, sample results of “rigorous” full-wave numerical analysis of the electromagnetic field morphology in vicinity of a typical representative base station panel antenna are pr...

A new approach for multi-antenna broadcast channels in cellular networks based on multiuser diversity concept is introduced. The technique called Opportunistic Interference Management (OIM), achieves Dirty Paper Coding (DPC) capacity asymptotically with minimum feedback required. When there are K antennas at the base station with M mobile users in the cell, the proposed technique only requires ...

A single cell scenario consisting of a multiantenna base station and several single antenna mobile stations is considered. An intermediate non-regenerative multi-antenna relay station is used to support the bidirectional communications. In such a scenario, the required data rates for upand downlink are typically different which is considered by introducing asymmetric rate requirements. A transm...

In this paper, Bit Error Rate (BER) performance of Feedback-type Adaptive Array Antenna (AAA) in Frequency Division Duplex/Direct Sequence Code Division Multiple Access system (FDD/DS-CDMA) with Mobile Station (MS) reception diversity will be investigated. The results include the effects of maximum Doppler frequencies (fd) and antenna element spacing at Base Station (BS) under flat fading and f...

The optimal base station placement and effective radio resource management are of paramount importance tasks in cellular wireless networks. This paper deals with automatic planning of base station sites on a studied scenario, maintaining coverage requirement and enabling the transmission of traffic demands distributed over the area. A city scenario with different demands is examined and the adv...

This paper deals with the automatic selection and configuration of base station sites for mobile cellular networks. An optimization framework based on simulated annealing is used for site selection and for base-station configuration. Realistic path-loss estimates incorporating terrain data are used. The configuration of each base station involves selecting antenna type, power control, azimuth, ...