Dynamic Invention LLC

The Hong Kong University of Science and Technology

Danny Hin Kwok Tsang

Ka Wai Wong

Lei Kong

Tengyi Zhang

Yuan Wu

Hao Luan

Ke Lang

Kin Wah Kwong

Cooperative sensing scheduling and parameter designs are described, which can achieve improvements in energy efficiency in cognitive radio networks, for example. In addition, the disclosed subject matter describes an objective or reward function or policy related to energy efficiency and considerations such as channel assignments sensing time that can maximize the objective function. The disclosed details enable various refinements and modifications according to system design and tradeoff considerations.

Cooperative sensing scheduling for energy-efficient cognitive radio networks

Providing for cooperative sensing in wireless communications that improves user terminal throughput and minimizes interference is described herein. According to some aspects, a network entity, such as a base station, can assign a set of SUTs to measure a subset of wireless channels in a target frequency according to a cooperative sensing arrangement. In particular aspects, this assignment can be implemented so as to increase or maximize potential traffic throughput of those SUTs within the target frequency, in a given wireless time slot. In this manner, cooperative sensing can be structured so as to provide more efficient traffic communications within the target frequency.

Cooperative spectrum sensing in cognitive radio networks

The disclosed subject matter relates to energy efficiency in mobile devices associated with a wireless communications environment. Power Saving Classes (PSCs) aim to reduce the power consumption of mobile devices based on the different types of traffic. Optimizing sleep mode selection schemes so as to maximize the energy efficiency while providing a QoS guarantee can be accomplished with optimization of a theoretical framework based on the semi-Markov Decision Process along with a performance evaluation on the sleep mode operation. A novel Policy Optimization algorithm is capable of finding optimized policies for a selection of different PSCs.

Sleep mode selection employing a semi-markov decision process

An efficient media streaming method utilizing a globally load balanced overlay network. This method makes use of capacity per out-degree values to construct and maintain an overlay network for media streaming in a Peer-to-Peer environment.

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Hong Kong, China

Danny Hin Kwok Tsang