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In this paper, the problem of dynamic pricing over multiple rounds of spectrum leasing is investigated. One primary network is considered, which is the spectrum seller that would like to lease its unused channels to secondary users. To accommodate different arrival instants of secondary users' spectrum requests, spectrum leasing is performed in multiple rounds (stages), and in each stage, a separate...
With the development of the Internet of Things, the concept of Integrated Sensing Network (ISN) and its functional architecture are proposed. The core functions of the sensing stratum, the transport stratum, the service stratum and the management platform as well as a data flow model for ISN are discussed. The reference architecture and the model provide a common basis for the research and development...
In VoIP over WLAN (known as VoWLAN) transmission, one of the main problems is that the supported voice channel capacity is relatively low. As an improvement to IEEE 802.11 MAC layer Carrier Sense Multi-Access/Collision Avoidance (CSMA/CA) algorithm, this paper presents Prediction/Collision Avoidance (P/CA) mechanism based on service attribute and cross-layer control. Under this mechanism, there is...
This paper presents a carrier Ethernet (CE) test bed based on the Next Generation Network (NGN) framework. After the concept of CE carried out by Metro Ethernet Forum (MEF), the carrier-grade Ethernet are obtaining more and more interests and being investigated as the low cost and high performance services of transport network to carry the IPTV traffic. This test bed is approaching to support the...
A novel weighted cooperative routing algorithm (WCRA) is proposed in this article, which was on the basis of a weighted metric with maximal remaining energy (MRE) of the relays and the maximal received SNR (MRS) of the nodes. Moreover, a cooperative routing protocol was implemented on the basis of WCRA. Then simulation is done on network simulation (NS-2) platform to compare the performances of MRS,...
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