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A millimeter-wave (mmW) radio channel measurement campaign at 64.5 GHz for train's virtual coupling application was performed in a regional train in France. In this paper, we give a brief description of the channel sounder design and channel measurement campaigns with four dedicated scenarios including different setups and other channel parameters. The results of angular power distribution obtained...
To enable machine type communications (MTCs), MTC gateway (MTCG) is deployed in LTE-A cellular networks. An MTCG can collect data from a group of MTC devices (MTCDs) and forward the data to the base station (BS) via cellular uplinks. This letter proposes a nonorthogonal radio resource allocation (RRA) scheme for MTC-enabled cellular networks, in which an MTCG is configured as a full duplex (FD) relay...
This study focuses on the statistical properties of the Power Delay Profile (PDP) and path loss results at 5.9 GHz for the indoor environment. The measurement campaign was conducted by using a 5.9 GHz channel sounder to extract the characterization of the indoor radio channel. The successive PDP of our measurement data is presented and statistical properties of mean delay and RMS delay spread is investigated...
In Mobile Social Networks (MSN), users can subscribe to online services and receive service data through base stations in addition to exchanging data directly. When multiple users in the same cell subscribe to the same service, the base station needs to forward the service data to all these users individually, leading to low utilization of the wireless resource. In order to improve the bandwidth efficiency,...
Internet of things (IoT) has become an emerging new technology. Things having identities and virtual personalities use intelligent interfaces to connect and communicate within social environmental and user contexts. This paper first studied the mechanisms of some existing routing protocols such as AODV, DSR and OLSR, which is widely used in Ad Hoc networks. And then their performance in IoT circumstances...
Mobile social network (MSN) is a special kind of delay tolerant network that consists of mobile users with social characteristics. The existing social-aware data delivery algorithms usually ignore the energy cost of devices as well as the time-varying characteristic of user clustering in the vicinity of hotspots, which result in the degradation of the energy efficiency and the delay performance of...
In recent years, the information-centric networking (ICN) concept has been attracting increasing attention of the research community. The aim is to overcome intrinsic inefficiencies of the existing host-to-host communication paradigm, as well as to provide new and enhanced services to mobile and fixed users. A key feature of ICN is the support for in-network content caching. In this paper, we present...
Internet of Things (IoT) is a novel approach of connecting things/objects and thus transmitting information from the physical world to control centres (or vice versa) where this information can be interpreted. Where majority of the research focuses on sensor technologies (including energy harvesting), communications and routing, this paper positions itself on a higher layer, i.e., message scheduling,...
This paper starts with detailing the IEEE 802.16 network architecture and the quality of service (QoS) architecture; followed by a network utility function, which is related to the average queuing delay of each subscriber station (SS); and then a dynamic bandwidth allocation (DBA) algorithm is proposed. This algorithm takes into consideration the QoS requirements of different traffic types and makes...
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