Zhijian Lin

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Device-to-Device (D2D) Communication is an innovative mobile network technology, which is one of the key technologies in LTE-Advanced system. D2D communication can realize cellular users directly connect to transfer data under the eNodeB's control. This technology brings higher system capacity and mitigates the eNodeB's load. In order to evaluate the(More)
The spectrum scarcity is a serious problem for future development of wireless communication. The current researches on Cognitive Radio (CR) technologies and secondary usage of the spectrum have received a lot of attention. However, in CR networks, secondary users (SUs) should spend a large number of times for spectrum sensing. In this paper, we propose a(More)
Device-to-device (D2D) communication, which is defined as a direct communication between two mobile users without traversing the Base Station (BS) or the core network to offload the increasing traffic to the user equipments, is one of the key technologies in the fifth generation (5G) of wireless communication systems. Discovery and communication are the(More)
Mobile Edge Computing (MEC), which is considered a promising and emerging paradigm to provide caching capabilities in proximity to mobile devices in 5G networks, enables fast, popular content delivery of delay-sensitive applications at the backhaul capacity of limited mobile networks. Most existing studies focus on cache allocation, mechanism design and(More)
A large number of new data-consuming applications are emerging, and many of them involve mobile users. In the next generation of wireless communication systems, device-to-device (D2D) communication is introduced as a new paradigm to offload the increasing traffic to the user equipment. Before the traffic transmission, D2D discovery and access procedure is(More)
Based on the in-depth research on random access procedure in WCDMA system, the paper proposes an acquisition method of Acquisition Indicator Channel (AICH).That method is grounded on the transmitted power offset between AICH and Primary Common Control Physical Channel (P-CPICH) to deduce the Decision Threshold of acquiring AICH. In the procedure of(More)
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