In this paper, we propose an advanced transmission protocol for the next generation wireless access network using wireless network coding (WNC). As an alternative to conventional cooperative multipoint (CoMP) as described in LTE-A, WNC enables access point cooperation, combining the flows using network coding functions, instead of sending multiple separate information flows across the backhaul…
Omnet++ Simulator
Joint Traffic Splitting, Rate Control, Routing and Scheduling Algorithm for Maximizing Network Utility in Wireless Mesh Networks
The existence of multiple gateways, as is a common case in Wireless Mesh Networks (WMNs), brings the possibility to improve network performance. However, previous studies, including both heuristic-based works and theory-driven crosslayer design works, cannot guarantee an optimal exploitation of multiple gateways. In this paper, we focus on exploiting multiple gateways optimally to achieve maximum…
Robust Fluid Processing Networks
Fluid models provide a tractable and useful approach in approximating multiclass processing networks. However, they ignore the inherent stochasticity in arrival and service processes. To address this shortcoming, we develop a robust fluid approach to the control of processing networks. We provide insights into the mathematical structure, modeling power, tractability, and performance of the resulting…
Dissortative from the Outside, Assortative from the Inside: Social Structure and Behavior in the Industrial Trade Network
It is generally accepted that neighboring nodes in financial networks are negatively assorted with respect to the correlation between their degrees. This feature would play an important “damping” role in the market during downturns (periods of distress) since this connectivity pattern between firms lowers the chances of auto-amplifying (the propagation of) distress. In this paper…
Service Class Resource Management for Green Wireless-Optical Broadband Access Networks (WOBAN)
Exponential growth in the volume of wireless data, boosted by the growing popularity of mobile devices, such as smartphone and tablets, has forced the telecommunication industries to rethink the way networks are currently designed, and to focus on the development of high-capacity mobile broadband networks. In response to this challenge, researchers have been working toward…
Optimal Sampling Strategy Enabling Energy-Neutral Operations at Rechargeable Wireless Sensor Networks
Due to nonhomogeneous spread of sunlight, sensing nodes possess nonuniform energy budget in rechargeable wireless sensor networks. An energy-aware workload distribution strategy is therefore necessary to achieve good data accuracy subject to energy-neutral operation. Our previously proposed energy aware sparse approximation technique (EAST) can approximate a signal, by adapting sensor node sampling workload according to…
Impact of Dirty Devices on CDMA Network Coverage and Capacity
The introduction of cellphones with poor receiver sensitivity, known as dirty devices, to the Code Division Multiple Access (CDMA) cellular network results in a reduction in cell edge coverage, degraded capacity, and higher drop-call rates. This poor network performance has a negative impact on customer experience and satisfaction, which may result in increased churn for…
An Order Optimal Policy for Exploiting Idle Spectrum in Cognitive Radio Networks
In this paper, a spectrum sensing policy employing recency-based exploration is proposed for cognitive radio networks. We formulate the problem of finding a spectrum sensing policy for multiband dynamic spectrum access as a stochastic restless multiarmed bandit problem with stationary unknown reward distributions. In cognitive radio networks, the multiarmed bandit problem arises when deciding where…
Reliability and Survivability Analysis of Artificial Cobweb Network Model Used in Low-voltage Power-line Communication System
In order to verify the feasibility of the artificial cobweb model used in low-voltage power line communication (LVPLC) routing to improve the reliability of LVPLC, the all- terminal reliability of the artificial cobweb model has been calculated based on the factorization method in this paper. Specifically,Analysis shows that the proposed artificial cobweb shows much better…
Ultimate boundedness of non-autonomous dynamical complex networks under impulsive control
This paper is concerned with the ultimate boundedness problem of non-autonomous complex networks with different dynamical nodes by using the impulsive control method. Some ultimate boundedness and asymptotical stability criteria for the non-autonomous complex networks with different dynamical nodes under impulsive control are obtained by using Lyapunov functions. The results show that not only unstable…