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In this paper we proposes a novel Passive Optical Network (PON) based broadband wireless access network
architecture to provide multimedia services (video telephony, video streaming, mobile TV, mobile emails etc) to
mobile users. In the conventional wireless access networks, the base stations (Node B) and Radio Network Controllers
(RNC) are connected by point to point T1/E1 lines (Iub interface). The T1/E1 lines are expensive and add up to
operating costs. Also the resources (transceivers and T1/E1) are designed for peak hours traffic, so most of the time the
dedicated resources are idle and wasted. Further more the T1/E1 lines are not capable of supporting bandwidth (BW)
required by next generation wireless multimedia services proposed by High Speed Packet Access (HSPA, Rel.5) for
Universal Mobile Telecommunications System (UMTS) and Evolution Data only (EV-DO) for Code Division Multiple
Access 2000 (CDMA2000). The proposed PON based back haul can provide Giga bit data rates and Iub interface can
be dynamically shared by Node Bs. The BW is dynamically allocated and the unused BW from lightly loaded Node
Bs is assigned to heavily loaded Node Bs. We also propose a novel algorithm to provide end to end Quality of Service
(QoS) (between RNC and user equipment).The algorithm provides QoS bounds in the wired domain as well as in
wireless domain with compensation for wireless link errors. Because of the air interface there can be certain times when
the user equipment (UE) is unable to communicate with Node B (usually referred to as link error). Since the link errors
are bursty and location dependent. For a proposed approach, the scheduler at the Node B maps priorities and weights
for QoS into wireless MAC. The compensations for errored links is provided by the swapping of services between the
active users and the user data is divided into flows, with flows allowed to lag or lead. The algorithm guarantees
(1)delay and throughput for error-free flows,(2)short term fairness among error-free flows,(3)long term fairness among
errored and error-free flows,(4)graceful degradation for leading flows and graceful compensation for lagging flows.
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