Wireless Heterogeneous Networks (WHN) have become one of the deployment scenarios for the Fourth Generation Mobile Communications Networks (4G). In recent trends, heterogeneous service models integrating between Wireless LANs (WLANs) and cellular networks have attracted the most attention. This is due to the increasing demand for broadband services, causing… (More)
investigated in case of excluding the cross-pol Pre-RAKEs in the base station. The paper discusses the effect of the polarization diversity characteristics as well as the impact of the imbalance in the co-polarized power intensities on the BER performance. For slowly-varying channels, an assessment for the system performance will be investigated under… (More)
in this paper, a Space-Time-Frequency block code (STFBC) based on Quasi-Orthogonal designs is proposed over a frequency selective Rayleigh fading channel. The proposed code achieves rate-one and full diversity offered by the MIMO-OFDM channel. For quasi-static channel over adjacent OFDM symbol durations, as numerical results demonstrate, the proposed code… (More)
request, provided it is not made publicly available until 12 months after publication. Abstract In this paper, an advanced closed loop Polarized Multiple-Input Multiple-Output Pre-RAKE Combined Transmit Diversity " Pol MIMO Pre-RAKE CTD " system is proposed for the downlink. The proposed system is designed and analyzed in frequency division duplex mode. The… (More)
(FBI) rates. In addition, a performance comparison for the vehicular and the pedestrian environments will be presented.