• Publications
  • Influence
Introduction to Network Simulator NS2
TLDR
Introduction to Network Simulator NS2 is a primer providing materials for NS2 beginners, whether students, professors, or researchers for understanding the architecture of Network Simulator 2 (NS2) and incorporating simulation modules into NS2. Expand
  • 1,132
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Stochastic Geometry for Modeling, Analysis, and Design of Multi-Tier and Cognitive Cellular Wireless Networks: A Survey
TLDR
A comprehensive survey on the literature related to stochastic geometry models for single-tier as well as multi-tier and cognitive cellular wireless networks. Expand
  • 821
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Dynamic User Clustering and Power Allocation for Uplink and Downlink Non-Orthogonal Multiple Access (NOMA) Systems
TLDR
We formulate a sum-throughput maximization problem in a cell such that the user clustering (i.e., grouping users into a single cluster or multiple clusters) and power allocations in NOMA clusters can be optimized under transmission power constraints, minimum rate requirements, and SIC constraints. Expand
  • 396
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Fractional frequency reuse for interference management in LTE-advanced hetnets
TLDR
We evaluate three state-of-the-art FFR deployment schemes for OFDMA-based two-tier HetNets comprising macrocells overlaid with femtocells. Expand
  • 231
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Resource allocation for spectrum underlay in cognitive radio networks
  • L. Le, E. Hossain
  • Computer Science
  • IEEE Transactions on Wireless Communications
  • 1 December 2008
TLDR
We propose admission control algorithms to be used during high network load conditions which are performed jointly with power control so that QoS requirements of all admitted secondary users are satisfied. Expand
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Competitive Pricing for Spectrum Sharing in Cognitive Radio Networks: Dynamic Game, Inefficiency of Nash Equilibrium, and Collusion
TLDR
We address the problem of spectrum pricing in a cognitive radio network where multiple primary service providers compete with each other to offer spectrum access opportunities to the secondary users. Expand
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On Stochastic Geometry Modeling of Cellular Uplink Transmission With Truncated Channel Inversion Power Control
TLDR
We show that there exists a transfer point in the uplink system performance that depends on the following tuple: BS intensity λ, maximum transmit power of UEs P<sub>u</sub>}, and ρ<sub>. Expand
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Interference management in OFDMA femtocell networks: issues and approaches
TLDR
We provide a survey of the different state-of-the-art approaches for interference and resource management in orthogonal frequency-division multiple access (OFDMA)-based femtocell networks. Expand
  • 406
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Evolution toward 5G multi-tier cellular wireless networks: An interference management perspective
TLDR
We have outlined the challenges for interference management in 5G multi-tier networks considering its visions, requirements, and key features. Expand
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