Syed Fahad Yunas

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To tackle the 1000× mobile data challenge, the research towards the 5th generation of mobile cellular networks is currently ongoing. One clear enabler toward substantially improved network area capacities is the increasing level of network densification at different layers of the overall heterogeneous radio access system. Ultra-dense deployments, or(More)
Network densification has been identified as one key enabling technology to address the 1000x mobile data challenge. This article analyzes network densification from the different deployment options perspective by looking into three mainstream technologies; Macrocells, Microcells, and Femtocells. The technologies are evaluated in a suburban neighborhood(More)
In this paper we evaluate the capacity performance of a microcellular network deployment in a dense urban Manhattan grid environment. Different microcellular layouts with varying cell densities per sq. km are investigated, while considering the outdoor and as well as indoor propagation environments. Three main capacity enhancing techniques, network(More)
This paper presents a unique concept of ‘Spotlight coverage’ for outdoor multi-antenna (or DAS) cellular systems. This concept helps in achieving high Signal-to-Interference Ratio (SIR) throughout the cell coverage area by effectively controlling the leakage into the neighboring cells. Interference and coverage analysis of traditional wall(More)
This paper aims to show the effect of macrocellular network densification on the capacity, energy and cost efficiency. The presented results are based on radio propagation simulations that consider macrocellular network with different inter-site distances, i.e. different site densities, and also take into account the presence of indoor receiver points by(More)
This paper studies the coverage aspects of a low altitude platform (LAP) system that can form a temporary communication network. The system consists of multiple autonomous drones equipped with dual-band Wi-Fi access points (APs) with ad hoc capabilities to form a mesh network. The suitability of the LAP system is evaluated from the coverage point of view(More)
The current outdoor deployments, dominated by macrocellular layer, inherently lacks the capabilities for supporting the anywhere and anytime services of Beyond 4G (B4G) networks. Hence, new deployment solutions are required that can cost-effectively address the capacity demand of the future and also offer consistently high bit rates and decent quality of(More)
The aim of this paper is to present and propose different multi-antenna cell constellations based on outdoor distributed antenna system implementation. The idea of the outdoor DAS is to reduce interference in dense urban areas in order to achieve very high signal-to-interference-ratios (SIR) which defines the data throughput available to the user. Moreover,(More)
In this article, we study and analyze the impact of modern buildings, with increased building penetration losses (BPLs), on different cellular deployment strategies based on traditional outdoor (macro) and dedicated indoor (femto) solutions in a suburban environment. The analysis covers both indoor and outdoor use cases, and the performance of the(More)