Integration of next generation wireless technologies i.e., WiMAX (Worldwide Interoperability for Microwave Access)
and or LTE (Long Term Evolution) with EPON is a brilliant concept that gives users the best of two worlds, wireless
and wired. WiMAX gives users the convenience of mobility while integration with EPON gives theoretically unlimited
bandwidth of fiber optic cable in backhaul. This paper investigates WiMAX and EPON technologies. At the end
different scenarios of integration of EPON with WiMAX are discussed and optimal QOS mapping scheme is proposed
for the integration of EPON and WiMAX.
This paper presents the key features of the emerging Next Generation Passive Optical Network (NG-PON) and IEEE
802.16m based Mobile Worldwide Interoperability for Microwave Access (WiMAX) networks to build a unified cost
effective next generation hybrid Fiber-Wireless network. NG converged-access solutions can meet the demand for cost,
mobility, bandwidth, reliability, security, and flexibility. NG-PON and 4th Generation (4G) Mobile WiMAX unified
architecture enables differentiated bandwidth allocation to end users and can provide more network range and capacity at
reduced operational cost. The concept of hybrid optical network unit and advanced base station (ONU-ABS) simplifies
the network architecture and can save some installation and operational costs.
KEYWORDS: Network architectures, Free space optics, Broadband telecommunications, Signal processing, Error control coding, Transceivers, Microwave radiation, Fiber to the x, Optical networks, Optical fibers
This paper proposes a novel Ethernet-based wired/wireless broadband access networking architecture that utilizes the
existing wired trunk feeder fiber of typical PON infrastructure along with a hybrid FSO/RF reliable wireless connectivity
to the end-users. By combining the benefits of both FSO and RF technologies, the proposed integrated networking
solution can provide a downstream bandwidth of up to 2.5 Gbps per wavelength and 99.999% availability at a range of 1
km in all weather conditions [2].
All the previous work on hybrid FSO/RF was based on point to point, our proposed architecture is unique in the sense of
providing point to multipoint access to end users and bringing all wired/wireless network in to single network, which is
transparent to the users.
KEYWORDS: Network architectures, Receivers, Transmitters, Signal detection, Stars, Multiplexing, Signal processing, Broadband telecommunications, Failure analysis, Process control
To date, the mainstream Ethernet Passive Optical Network (EPON) bandwidth allocation schemes as well as the new IEEE 802.3ah Ethernet in the First Mile (EFM) Task Force specifications have been centralized, relying on a component in the central office, Optical Line Termination (OLT), to provision upstream traffic. Hence, the OLT is the only device that can arbitrate time-division access to the shared channel. Since the OLT has global knowledge of the state of the entire network, this is a centralized control plane in which the OLT has centralized intelligence. One of the major problems associated with a centralized architecture is the "single-point of failure" problem that is the failure of the OLT software will bring down the whole access network. It is the purpose of this work to propose a distributed solution to this problem, and to devise and experimentally demonstrate the feasibility of implementing a novel Ethernet over Star Coupler-based PON architecture that uses a fully distributed time division multiple access arbitration schemes. Specifically, we assess the viability of implementing a distributed control plane architecture that facilitates internetworking among connected users.
In addition to the added flexibility and reliability associated with distributed control plane architecture, as well as emulating shared LAN capability among different users, the distributed networking architecture and the associated bandwidth allocation algorithms have characteristics that make them far better suited for provisioning Quality of Service (QoS) schemes necessary for multimedia services over a single line.
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