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Offloading users from an overloaded macro base station (BS) to a lightly loaded small cell BS is critical to alleviate the congestion of the macro BSs. However to overcome the signal-to-interference-plus-noise ratio (SINR) degradation of the offloaded users, offloading should be done in conjunction with an efficient interference management technique. Strict fractional frequency reuse (Strict-FFR)...
Heterogeneous cellular networks have received considerable attention in the literature owing to increased data demands of cellular network users. Recently, Poisson Point processes (PPPs) are vastly used for modeling and analyzing cellular networks because of their accuracy and tractability. However, results in this area suffer from a big drawback. They considered a saturated load model in their analysis...
We consider the problem of recovering a graph signal from noisy and incomplete information. In particular, we propose an approximate message passing based iterative method for graph signal recovery. The recovery of the graph signal is based on noisy signal values at a small number of randomly selected nodes. Our approach exploits the smoothness of typical graph signals occurring in many applications,...
Energy conservation and interference reduction are the two important goals of any topology control algorithm in wireless multi-hop sensor networks, but impacts of traffic on interference have been largely ignored in mostly all previous works on topology control. Inspired by this challenge, we set out to investigate the impact of traffic load on nodes' energy consumption and having demonstrated its...
In this paper, we investigated the problem of finding an efficient topology for delay-constrained data in WSNs. As we know topology control is one of the important mechanisms designed for decreasing energy consumption in WSNs. Since topology control may increase the end-to-end delay, one of the criteria's should be considered in topology control algorithms is delay constraint. Most existing works...
Energy conservation and interference reduction are the two main goals of any topology control algorithm in wireless multi-hop networks, but impacts of traffic on interference have been largely ignored in almost all previous works. In this paper, we showed that traffic load has significant influence on energy consumption of network nodes and then we made a relation between traffic and interference...
We investigate the problem of finding an efficient topology for delay-constrained data in WSNs. Since topology control may increase the end-to-end delay, one of the criterion's that should be considered in topology control algorithms is restricting delay. Existing works utilized hop count measure for delay; yet hop count is not a suitable criterion for delay measurement because the delay is dependent...
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