The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
This work studies the social-aware joint issue of mode selection and link allocation over mobile device-to-device (D2D) communications underlaying cellular networks. We first model this joint problem as a hedonic coalition formation game, which considers the tradeoff between the benefits in terms of achievable rate and the costs in terms of the mutual interference. Importantly, we introduce the local...
Cache-enabled device-to-device (D2D) communication is a promising technique to offload the core traffic and cache deployment is important in achieving the benefits brought by caching. While rare considered optimal caching deployment from the perspective of energy efficiency. In fact, cache deployment will certainly influence the distribution of active transmitters, network interference and power consumption,...
Cognitive radio (CR) network technology is widely used as a approach to the solve the scarce radio spectrum by allowing the unlicensed users to access the licensed spectrum. Since in the CR network, the licensed users are easily be affected by the introduce of the unlicensed user, we have to avoid to bring the interference to the licensed users when the unlicensed users try to transmit the data on...
In heterogeneous networks (HetNets), small cells are overlaid within a large cell in order to increase capacity and coverage beyond the initial deployment of a large cell. Previous studies assumed that small cells are deployed only in the cell edge area of a large cell to support low-SINR users in that area. However, in a future communication environment, we need more small-cells to support much higher...
In this work, we study the problem of green uplink resource sharing over mobile device-to-device (D2D) communications underlaying cellular network. We first construct a analysis model of energy efficiency, which takes into account different sharing modes, as well as QoS requirement and spectrum utilization of each user. Then, we formulate the sharing problem as a non-transferable coalition formation...
This paper analyzed the interference WCDMA signals to digital terrestrial broadcast television receiver, demonstrated that since WCDMA transmitting power control (TPC) mechanisms, in the most serious interference cases, the uplink or downlink interference will be dominant respectively, so in the interference analysis, uplink and downlink interference should be treat respectively, i.e. the case of...
In this paper the author focuses his study on finding the factors that decide the receiver's immunity of digital cellular mobile communication system. He starts his study from analyzing RF receiving sensitivity formula and finds that, by ways of optimizing FT (total noise factor) of the receiver's RF part and minimizing (minimum output signal to noise ratio required by communication system), the receiving...
In IEEE 802.16e OFDMA system, the system capacity for accommodating VoIP traffic with small-sized PDUs is severely reduced due to a large amount of signalling overhead. In order to mitigate this problem, the IEEE 802.16 maintenance group has recently proposed a persistent allocation scheme to increase the voice over IP (VoIP) system capacity. However, it is difficult to use the conventional modulation...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.