Saied M. Abd El-atty

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In this paper we propose an effective combination of a call admission control (CAC) mechanism together with a traffic scheduling algorithm. These two schemes are designed for WCDMA systems and operate in a complementary fashion in order to support handoff provisioning. The CAC mechanism belongs to the well known family of guard channel schemes and reserves(More)
The heterogeneous network (HetNet) deployed small cells technology to overcome the problems of holes “blind spots” coverage in 3G and 4G mobile networks. In this paper, we propose a hierarchical HetNet layout comprises of three layers, macro, metro and femto cells. The interplay between successive layers due to handover (HO) traffic is(More)
—The advanced heterogeneous vehicular network (AHVN) is a new paradigm for future vehicular networks. AHVN is an integrated architecture between the VANET and the existing cellular wireless networks. This paper introduces a vehicular communications framework for efficient Multihop connectivity in AHVN. The vehicular communication in VANET is based on the(More)
— Advanced heterogeneous vehicular network (AHVN) is a promising architecture for providing vehicular services in the next generation of vehicular networks. AHVN is an integrated architecture between vehicular ad hoc networks and existing cellular wireless networks. In this work, we propose a Multihop vehicular connectivity model in V2V system, which(More)
Third Generation partnership project long term evolution (3GPP LTE) requires low complexity, efficient scheduling policies to sustain optimal system operation while maintaining high level Quality of Service (QoS) to each active traffic flow. In sequel, the fairness principle is crucial in the design of a robust scheduler, due to buffer status, spectrum(More)
The efficiency of adaptive modulation and coding (AMC) procedure in high speed Downlink packet access (HSDPA) depends on the frequency of the channel quality information (CQI) reports transmitted by the UE to Node B. The more frequent the reports are the more accurate the link adaptation procedure is. On the other hand, the frequent CQI reports increase(More)