Femtocell networks, consisting of a conventional macro cellular deployment and overlaying femtocells, forming a hierarchical cell structure, constitute an attractive solution to improving the macrocell capacity and coverage. This paper treats the uplink interference problem in orthogonal frequency-division multiple-access (OFDMA)-based femtocell networks with partial cochannel deployment. First...

Graph Coloring and Ant Colony Optimization based Sub-channel Allocation Algorithms for LTE-A HetNets c ©Richa Siddavaatam, 2012 Master of Applied Science Electrical and Computer Engineering Ryerson University LTE-Advanced is a promising technology which supports much higher peak rates, higher throughput and coverage, and lower latencies, resulting in a better user experience. For extended indoo...

Heterogeneous networks (HetNets) are regarded as a promising approach to handle the deluge of mobile data traffic. With the co-channel deployment of small cells, the coverage and capacity of the network will be improved. However, the conventional maximum-received-power (MRP) user association scheme and cross-tier interference issue significantly diminish the performance gain provided by small c...

In this paper, adaptive channel management approach fuzzy neural networks in heterogeneous wireless cellular networks (ACM-FNN) is presented to efficient resource allocation, and admission control schemes are needed to guarantee quality-of-service (QoS) for differentiated services. The channel management in a two-tier such as micro cell or macro cell wireless cellular networks. Effective reliab...

We model multistage competition in supply chains by a sequential game theoretical network. show the uniqueness of equilibrium for series parallel networks and provide linear time algorithm to compute equilibrium. study impact network structure on firms' payoffs, total trade flow, overall social welfare.

Usually, cellular networks are modeled by placing each tier (e.g macro, pico and relay nodes) deterministically on a grid. When calculating the metric performances such as coverage probability, these idealized for not considering interference. Overcoming limitation realistic models is much appreciated. This paper considered two- two-hop network, consisting of transmission, nodes relaying messag...