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Self-user relaying technology is designed to support multiple self-owned devices especially when wearable devices are becoming more popular. In this letter, with a consideration of power control and discontinuous reception mechanism, a power model and energy metric are derived to analyze self-user relaying performance. Results show that under a typical traffic model, self-user relaying can improve...
Traffic in wireless networks has become more diverse due to various applications running on smartphones. Moreover, traffic generated by background processes which has small amount of data and widely dispersed in time takes up a large portion of diverse data applications. To reduce signaling overhead due to frequent state transitions of radio resource control (RRC), the evolved nodeB (eNB) tends to...
Machine Type Communication (MTC) is a very distinct technology that enables the “Internet of things”. Overload that caused by a large number of MTC device is one of the primary issues for supporting MTC. Extended Access Barring (EAB) is a barring mechanism for long-term evolution (LTE) network to selectively control access attempts in order to prevent overload. In the paper, a method to predict access...
This paper studies paging operation when carrier aggregation (CA) is adopted in LTE-A system. A numerical analysis is provided and shows signaling overhead would increase significantly if paging is not properly controlled under CA. To overcome the problem, efficient paging controls are proposed while adaptive paging configurations on different component carrier are able to resist excessive overhead...
In this paper, a novel vertical handover control algorithm, consisting of a throughput-based mapping function, QoS-based dynamic handover thresholds, and performance-based trigger timers, is proposed to resolve uncommon pilot problems, QoS requirements, and ping-pong effects, respectively. A numerical analysis is provided to evaluate the proposed algorithm in terms of the handover frequency and achievable...
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