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Presents the introductory welcome message from the conference proceedings. May include the conference officers' congratulations to all involved with the conference event and publication of the proceedings record.
Presents the introductory welcome message from the conference proceedings. May include the conference officers' congratulations to all involved with the conference event and publication of the proceedings record.
Presents the introductory welcome message from the conference proceedings. May include the conference officers' congratulations to all involved with the conference event and publication of the proceedings record.
To solve abnormal coverage problems in cellular networks caused by some internal or external failures without power control, an automated Cell Outage Compensation (COC) scheme based on antenna downtilt adjustment of Base Stations (BSs) is proposed. We firstly give the self-organized processes for COC, then use an algorithm named Autonomic Downtilt Adjustment Particle Swarm Algorithm (ADAPSA) to resolve...
For some scenarios where high received power cannot be guaranteed due to user moving, the OFDM system with low order M-QAM such as BPSK/QPSK is promising. This paper will propose an orthogonal parallel combinatory ASK modulated multicarrier system to achieve flexible bandwidth efficiency (BWE) using low order ASK modulation and parallel combinatory (PC) code. PC code has been shown that it can achieve...
Heterogeneous deployment of macro cells and small cells is considered as a major network topology in future-generation cellular networks. Such layouts could efficiently and effectively enhance network coverage and capacity. To achieve multigiabit radio access, millimeter wave (mmWave) frequencies will be used in 5G heterogeneous networks (HetNets). A typical scenario of such HetNets is that mmWave...
Load balance (LB) is important for heterogeneous networks (HetNets) composed by low power small cells and high power macrocells. In centralized HetNets (CHetNets), the limit on fronthaul capacity has an innegligible impact on LB performance. This paper focuses on the fronthaul capacity aware LB in CHetNets. First of all, a user cell association optimization problem is formulated to maximize the total...
This paper designs and implements a WCDMA (Wideband Code Division Multiple Access) network mobile terminal positioning system. In this system, we use a device to call the target initiatively so as to tempt it to establish a link with the base station, but every call stops before the target perception. The system captures relevant parameters in link establishment process, from which the location-related...
This paper investigates a multi-pair two-way massive MIMO amplify-and-forward full-duplex relay (MM-AFFDR) system over Ricean fading channels, where multiple pairs of full-duplex users exchange information within pair through a full-duplex relay with very large number of antennas (M for transmission and M for reception). Firstly, the zero-forcing reception/zero-forcing transmission (ZFR/ZFT) processing...
In this paper, we study the low complexity user-relay assignment problem in amplify-and-forward (AF) cooperative communication systems, where multiple users compete for the same group of relays. In order to reduce the great computational complexity of the exhaustive user-relay assignment algorithm which provides the best performance in multi-user multi-relay environment, we propose a suboptimal low...
In this paper, we investigate the secrecy performance of multiuser dual-hop relay networks where a base station (BS) communicates with multiple legitimate users via the assistance of a trustful regenerative relay in the presence of multiple eavesdroppers. In particular, the maximal ratio transmission (MRT) scheme is exploited at the BS and a threshold-based multiuser scheduling scheme is employed...
In this paper, we propose a non-coordinated Licensed Shared Access (LSA) model which enables Mobile Network Operators (MNOs) acting as domestic licensees to provide enhanced Quality of Service (QoS) in border areas. The proposed model allows the domestic licensees to rely on their backup strategies while utilizing available spectrum resources, to avoid severe interference and maintain their QoS, whenever...
Maximization of the Energy Efficiency (EE) is considered as a main objective in the design of modern wireless networks. In this paper, we address the energy efficiency enhancement of dual-hop amplify-and-forward (AF) cooperative relay systems considering imperfect statistical channel state information (CSI) over Rayleigh fading channels. We first formulate the expression of the EE. Then, based on...
This paper focuses on D2D clustering communication method in the uplink and downlink aiming at saving energy of Mobile Terminals (MTs). The method contains MTs clustering method and cluster head selection methods. The MTs clustering method is based on the distance information of MTs. The cluster head selection method is based on the energy consumption or the residual energy of MTs. And Quality of...
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