Cost Model for Bitstream Access Services with QoS Parameters

The european regulator gr oup (erg) defines bitstream access service as a wholesale service offered by a broadband network operator with significant market power to an internet service provider , and identifies it as a market subje ct to regulation. this paper develops a cost model f or the bitstream access service under xdsl technology, following the recommendations of the erg , considering different user classes with differentiated qos requirements. for this purpose, three traffic engineering methods are analysed: separate virtual tunnels, over-engineering and priority queuing techniques