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This paper addresses an energy efficient network topology management strategy which exploits the path diversity in a dual-hop backhaul network in order to lessen the power consumption by switching as many underutilized base stations as possible to a dormant mode. This scheme dynamically tunes the various states of the relay nodes and aggregation points in a dual-hop setup to meet a trade-off between...
This paper introduces a novel distributed topology management scheme for 5G ultra-small cell networks (SCNs). The scheme is designed to switch as many base stations as possible to sleep mode without significantly degrading the Quality of Service (QoS). This is fulfilled through traffic perception by each base station in its dynamically changing monitoring area. Simulation results show that the proposed...
Heterogeneous networks (HetNets) consisting of macro- and pico-cells can well tackle the contradictory requirements on large coverage of the network and high data rate at the hot spots. In this paper, we study energy-efficient precoding for coordinated multi-point (CoMP) transmission for HetNets. We formulate a problem that maximizes the energy efficiency under the constraints of individual date rate...
In this paper, two novel energy efficient resource allocation schemes are proposed for beyond next generation mobile networks. The schemes take into account the clustering capability of base stations before assigning users to the base stations. A topology management scheme that adjusts the number of active base stations in accordance with the traffic load and also responds to QoS deterioration is...
We suggest the assignment of mobile terminals (MT) to base stations (BS) such that the number of expendable BSs is maximised (US Patent 13/339,763 (pending) [1], [2]). The investigation uses an existing implementation as base case and investigates a variety of specific scenarios; (simulated) computational results are provided for the individual test scenarios.
Topology control and energy saving is one of the most important challenges in wireless ad hoc sensor networks. There are two approaches for conserve energy in topology control algorithms. First by adjusting a node??s transmission power and second manipulating a node??s state. In this paper, multi-state k-fault tolerant topology control algorithm is presented using clustering technique to manage k...
Topology Control and energy saving is one of the most important challenges in wireless sensor networks because of Special characteristics of these networks such as limited transmission range, low bandwidth, limited power resource and the impossibility of recharging. In this paper, k-fault tolerant clustering topology control algorithm is presented. This algorithm named QoS-based clustering topology...
This paper proposes adapting dynamic network topology to match changing quality of service requirements in real-time wireless broadband networks. Based on modelling and drive tests, thresholds ensuring the quality of links for specified services are established. A method for matching network topologies according to link quality and capacity to IP services is presented. A service link quality matrix...
UTRA soft handover (SHO) algorithm is one of the most active and flexible techniques in WCDMA systems, which can be exploited to achieve higher QoS and better Radio Resource Management (RRM). In this paper a Smart SHO (SSHO) algorithm is proposed by modifying the conventional SHO algorithm used in UTRA networks to minimize the blocking and dropping probabilities (BP & DP). The proposed algorithm...
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