Hierarchical cellular multihop networks

However, multihop cellular networks still suffer from large amounts of interference surrounding the base station because all traffic either emanates or is destined to the base station making it the capacity bottleneck. To resolve this problem, we propose a novel architecture called the autonomous infrastructure multihop cellular network where users can connect their mobile terminals to the backbone network giving them the functionality of an access point. Access points receive traffic from other terminals and send it directly onto the backbone, as would a base station. This reduces the traffic handled by the base station and increases network capacity. Our analysis and simulations show that in autonomous infrastructure multihop cellular networks, the SINR at the base station ii is higher, the power consumption is lower and the coverage is better than in normal multihop cellular networks.Access points require parameters like their transmission range to be adjusted autonomously to optimal levels. In this thesis, we propose an autonomous pilot power protocol. Our results show that by adjusting a parameter within the protocol, a required coverage level of terminals can be specified and achieved without knowledge of the location or density of mobile terminals. Furthermore, we show that the protocol determines the transmission range that is optimal in terms of SINR and power consumption that achieves the required coverage while effectively eliminating the bottleneck that existed at the base station.iii

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“…These networks include Hierarchical Multihop Cellular Network (HMCN) [39] and Mobile-Assisted Data Forwarding (MADF) [76].…”

Section: Previous Workmentioning

confidence: 99%

Autonomous infrastructure based multihop cellular networks

DeFaria

Sousa

2009

2009 IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications

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“…due to shadowing of buildings. Different from the concept of mobile relay stations, which can no longer guarantee a full coverage of the area [17], in [19] it is proposed to extend the coverage by means of fixed multihop nodes, so called Extension Points. They are installed at certain locations and serve to extend the infrastructure in a flexible manner.…”

Section: Multihop Communicationmentioning

confidence: 99%

Performance analysis of resource allocation in wireless multihop networks

Lott

Weckerle

Siebert³

2006

Computer Communications

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“…One trend is the combination of multihop strategies and/or variable topology concepts with current cellular architectures in order to leverage the capacity of wireless access networks (see [20], [21], [22], and [23]). However, these architectures exhibit various problem areas in the context of routing such as, for example, a lack of understanding in the fundamental principles of reliability, robustness, and predictability in performance.…”

Section: Future Networkmentioning

confidence: 99%

A survey on dependable routing in sensor networks, ad hoc networks, and cellular networks

Hollick¹,

Martinovic²,

Krop³

et al. 2004

Proceedings. 30th Euromicro Conference, 2004.

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The class of wireless and mobile networks features a dissimilar set of characteristics and constraints compared to traditional fixed networks. The various dimensions of these characteristics/constraints strongly influence the routing system, which is often regarded as the glue of a network. We introduce the concept of routing dependability describing the trustworthiness of a routing system such that reliance can justifiably be placed on the consistency of behavior and performance of the routing service delivered. We investigate this concept by analyzing the basic characteristics of various networks. Subsequently, we derive the most important attributes and impairments that contribute to routing dependability in sensor networks, ad hoc networks, and infrastructure-based cellular networks. Departing from state-of-the-art network designs, we extend our survey to cover future network architectures as well. We finish by briefly investigating possible directions and means that allow mitigating the deprivation of dependability. Sensor NetworksSensor networks for the collection, fusion, and communication of environmental information are considered to have an outstanding potential for research and application [1]. Basically, sensor networks are defined by the combination of miniaturized sensors with communication technology.Possible applications for sensor networks include the measurement of temperature/humidity [2], the collection of pollution data, the monitoring of weaknesses in building structures, and the detection of chemical agents, to name a few. A main advantage of distributed and collaborative measurements includes the non-obstrusiveness and the increased accuracy of the data collection [3]. These applications demand for smart but cheap sensors, which operate selforganized even under harsh environmental conditions.Currently, sensor networks are considered to evolve towards so-called "smart dust" if technological advance permits such miniaturization [4]. However, severe limits, for instance, in energy supply, costs, maintenance of once deployed sensor nodes and reliability of operation persist. These and other limits are especially important for the communication aspects of sensor networks as we show later. Ad hoc NetworksThe visions of untethered communications and pervasive computing make a strong case for the self-organizing operation of mobile and wireless nodes within ad hoc networks. Possible civilian application domains of such networks include inter-vehicular communications [5], disaster recovery, multimedia home entertainment, and zero-configuration personal area communications. Furthermore, there are few proposals for wide area ad hoc networks [6].All these applications have certain demands in common: either there is impromptu need for communication, or the absence of infrastructure commands the network to be fashioned from whatever resources are immediately available. Moreover, the autonomous and cooperative operation is inherent to the network nodes, which are terminals (end systems) and routers (inte...

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Hierarchical cellular multihop networks

Cited by 26 publications

References 9 publications

Autonomous infrastructure based multihop cellular networks

Autonomous infrastructure based multihop cellular networks

Performance analysis of resource allocation in wireless multihop networks

A survey on dependable routing in sensor networks, ad hoc networks, and cellular networks

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