ABSTRACT
PON-based access networks envisage the demonstration of scalability to allow gradual deployment of time and
wavelength multiplexed architectures in a single-platform without changes in fibre infrastructure and also
highly-efficient bandwidth allocation for service provision and upgrade on-demand. This is achieved by the
application of coarse-fine grooming to route reflective-ONUs of time and wavelength PONs collectively and the
development of MAC protocols enabling the OLT to dynamically assign available time slots among O ....etc

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Integrated Fiber-Wireless (FiWi) Access Networks
Supporting Inter-ONU Communications



Abstract

Integrated fiber-wireless (FiWi) access networks
provide a powerful platform to improve the throughput of
peer-to-peer communication by enabling traffic to be sent from
the source wireless client to an ingress optical network unit (ONU),
then to the egress ONU close to the destination wireless client, and
finally delivered to the destination wireless client.

INTRODUCTION

NOWADAYS, access can ma ....etc

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Abstract—This paper provides an asymptotic analysis of the transmission delay experienced by SUs for dynamic spectrum access (DSA) networks. It is shown that DSA induces only light-tailed delay if both the busy time of PU channels and the message size of SUs are light tailed. On the contrary, if either the busy time or the message size is heavy tailed, then the SUs' transmission delay is heavy tailed. For this latter case, it is proven that if one of either the busy time or the message size is light tailed and the other is regularly varying w ....etc

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Distributed Medium Access Control for Next Generation CDMA Wireless Networks

Generic Distributed Network Model
we focus on a generic network model where a number of wireless mobile nodes are organized in a flat fashion, communicating with each other via one-hop or multiple-hop connections without any central control. Connections to outside correspondence nodes are supported through a gateway (e.g., in the wireless backbone) or an access point (e.g.,in ad hoc networks or WPAN).
In ....etc

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Sensor Medium Access Control (S-MAC) FOR WIRLESS NETWORKS

ABSTRACT

S-MAC is a medium-access control (MAC) protocol designed for wireless sensor networks. Wireless sensor networks use battery-operated computing and sensing devices. A network of these devices will collaborate for a common application such as environmental monitoring. We expect sensor networks to be deployed in an ad hoc fashion, with individual nodes remaining largely inactive for long periods of time, but then becoming suddenly active when somet ....etc

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Abstract:
This paper presents a performance analysis approach for OCDMA networks, which takes into account both the physical layer characteristics and random media access schemes. Analysis results demonstrate its effectiveness in characterizing the OCDMA network dynamics. ©2005 Optical Society of America OCIS codes: (060.4250) Networks; (060.4510) Optical communications
1. Introduction
Conventional optical local access networks typically use wavelength-division multiplexing (WDM) and timedivision multiplexing (TDM) techniq ....etc

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Co-operative cache based data access in ad hoc networks

Wireless ad hoc network is a collection of autonomous nodes or terminals that communicate with each other by forming a multihop radio network and maintaining connectivity in a decentralized manner. Since the nodes communicate over wireless links, they have to contend with the effects of radio communication, such as noise, fading, and interference. In addition, the links typically have less bandwidth than in a wired network. Each node in a wireless ad hoc network functions as both a host ....etc

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