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In heterogeneous cellular networks, a macro base station(MBS) power control algorithm based on macro users' fairness is proposed in this paper. In this algorithm, macro users choose channels based on the interference from femtocells. Then, the power solution of MBS in every channel is derived through the non-cooperative game. The constructed game utility function considers not only the system capacity,...
A Κ-tier uplink heterogeneous cellular network is modelled and analysed by accounting for both truncated channel inversion power control and biased user association. Each user has a maximum transmit power constraint and transmits data when it has sufficient transmit power to perform channel inversion. With biased user association, each user is associated with a base station (BS) that provides the...
A full-solid-angle (FSA) scanning planar phased array is proposed in this paper. The identical array element is consisting of two identical back-to-back microstrip antennas, which can be controlled independently by a power control unit. To verify the proposed principle, a 4 × 4 elements planar array is designed and simulated. The simulated results demonstrate that the main beam of the array can cover...
D2D (Device-to-Device) communication, which can decrease the power and enhance spectrum efficiency when sharing the resources of cellular networks, has caused a lot of attention. However, the performance of cellular networks decreases for the interference between cellular users and D2D users. In this paper, we put forward a channel allocation and power control algorithm, which can maximize the capacity...
This paper studies the power control problem in femtocell system based on Nash non-cooperative game theory. It designs an utility function taking fem stations' transmit power as variable and relates it to the requirements of macro users' and fem users' signal to interference plus noise ratio (SINR). The utility also takes the impact of fem stations' location into account and improves the fairness...
The introduction of femtocells brings more interference to cellular system, setting threshold to femtocell users' transmit power can control it effectively. To control the interference from femtocell users to macro base station and guarantee the QOS and maximize system capacity, this paper develops the uplink power control algorithm of femtocell system based on threshold and water- filling theorem...
This paper proposes an approach called PC-CORP (Power Control based Cooperative Opportunistic Routing Protocol) for WSN (Wireless Sensor Networks), providing robustness to the random variations in network connectivity while ensuring better data forwarding efficiency in an energy efficient manner. Based on the realistic radio model, we combine the region-based routing, rendezvous scheme, sleep discipline...
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