Deployment of Cost-Efficient Cloud Integrated WOBAN: A Cluster Based Approach

: In the present scenario, increasing bandwidth demand and data-hungry applications require every network to be equipped with cloud services, as a huge amount of storages, processing power and miraculous speed available with it. Cloud integrated Wireless Optical Broadband Access Network (CIW) is one of the suitable choices to fulfil these requirements. CIW can be realized by deploying Cloud Components (CCs) or thin servers either at optical back-end or at wireless front-end of the (Wireless Optical Broadband Access Network) WOBAN. In the present work, we integrate cloud components at wireless front-end of the CIW. Integration of CCs at front-end offloads traffic associated with cloud services from wireless front-end and diverts it towards CCs, which results in a reduction in bandwidth usage of the wireless front-end of WOBAN. We introduce a novel approach known as cluster-based optimization of network components in CIW. The proposed algorithm eliminates redundant Optical Network Units (ONUs) and optimizes a number of CCs while ensuring network connectivity and cloud services to all users. Simulation results validate that the proposed algorithm offers suitable candidature to deploy cost-efficient CIW.

Cloud-integrated wireless-optical broadband access network with survivability

Cloud-integrated wireless optical broadband (CIW) access networks inheriting advantages of cloud computing, wireless and optical access networks have a broad prospect in the future. Due to failure of components like OLT level, ONU level, link or path failure and cloud component level in CIW, survivability is becoming one of the important issues. In this paper, we have presented cloud-integrated wireless-optical broadband access network with survivability using integer linear programming (ILP) model, to minimize the number of cloud components while providing maximum backup paths. Hence, we have proposed protection through cloud-integrated wireless router to available ONUs (PCIWRAO). So, evaluated the backup path computation. We have considered ONU level failure in which the affected traffic is transferred through wireless routers and cloud component to the available ONUs using Manhattan distance algorithm. Simulation results show different configurations for different number of routers and cloud components illustrating available backup path when ONU fails.

A Novel Scheme for UDWDM-PON Broadband Access Network Using Injection-Locked Phase-to-Intensity Modulation Converter

In this paper, we have proposed and analyzed a novel cost-effective ultradense wavelength division multiplexed (UDWDM) passive optical network (PON) which uses phase modulation (PM) of the optical carriers in the optical line terminal (OLT) in order to achieve inherent noise immunity in the network. In the demodulation of the optical PM signal at the optical network unit (ONU), we have proposed to use a simple injection–locked Fabry–Perot (FP) laser diode (LD) for achieving PM to intensity modulation (IM) converter which is followed by a photodiode to recover the specific channel information. A detailed analysis of PM–IM conversion in an injection–locked FPLD has been carried out and the viability of the proposed scheme has been established. The proposed UDWDM–PON which is a broadband access network is cost-effective and long reach.