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Specific to the maximization of the system throughput, the joint resource allocation schemes for Device-to-Device (D2D) communication are proposed. Another purpose of the joint resource allocation schemes is to avoid the strong interference between cellular communication and the D2D communication. The core strategy of the algorithm is to establish a throughput matrix and find maximum throughput according...
User equipment (UE) as a basic device in cellular, may outfit different type of sensor module for specified usage, called multimode UE. With the natural mobility characteristics, this new type of UE is similar to an enhanced type of mobile sensor, with more energy and more flexibility. Since WSN can be deployed easily as no major infrastructure and human control are needed, the integration of cellular...
The cognitive radio network (CRN), as a promising technique in future wireless communication networks, shall execute some critical functionalities to enhance existing wireless networks, such as network reconfigurability to adaptively select networks (e.g., in IEEE P1900.4 and ETSI-RSS), spectrum opportunity utilization for transmissions over opportunistic links to enhance spectrum efficiency (e.g...
The random access systems, exploiting multiuser detectors such as MMSE detector and decorrelator, over large random spreading CDMA channel subject to Rayleigh fading is investigated, under the assumption of infinite number of users, infinite spreading gain, and their ratio converging to a constant. The signal to interference ratio (SIR) is shown to converge almost surely to a constant and the bit-error...
The random access systems, exploiting retransmission diversity (RD), over large random spreading CDMA channel subject to fading is investigated, under the assumption of infinite number of users and infinite spreading gain but with their ratio converging to a constant. The SIR, throughput and spectrum efficiency are analyzed. Simulation and numerical results show that RD exploitation can significantly...
In this paper, the design of a highly efficient and flexibly deployable wireless backhaul is addressed as a promising alternative to the typical wired solutions. To this end, a novel approach for relay transmissions with multiple antennas is proposed in the framework of wireless meshed backhaul system design optimization. The link and system level performance are assessed and different mesh topologies...
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