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This paper investigates a combined macro and femtocell communications deployment where macro users suffer significant downlink interference from femtocells. Based upon the large-scale cellular network model using stochastic geometry, we analyze the performance of the asynchronous ABSF configuration, where femtocell independently reserves resource for the victim macro user based on the condition of...
Performance of outdoor small cells with co-channel deployment of macro cells for DS-CDMA systems is considered in this paper. Although interference management techniques, such as self organising networks, have been developed and to some degree deployed there are many open issues especially related to the performance of small cells. Small cells address outdoor hotspots and have different characteristics...
Small cell network (SCN) offers, for the first time, a low-cost and scalable mechanism to meet the forecast data-traffic demand. In this paper, we propose a non-uniform SCN deployment scheme. The small cell base stations (BSs) in this scheme will not be utilized in the region within a prescribed distance away from any macrocell BSs, defined as the inner region. Based upon the analytical framework...
In this paper, a two-tier UMTS network is considered where a large number of randomly deployed Wideband Code Division Multiple Access (WCDMA) femtocells are laid under macrocells where the spectrum is shared. The co-channel interference between the cells may be a potential limiting factor for the system. We study the uplink of this hybrid network, and identify the critical scenarios that give rise...
By improving the throughput of the 4f system and by increasing the input laser pulse energy, milli-joule level two cycle pulses were produced with a liquid crystal spatial light modulator for the first time.
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