Analysis of blocking probability for distributed lightpath establishment in WDM optical networks
IEEE/ACM Transactions on Networking (TON)
Bandwidth Allocation with Half-Duplex Stations in IEEE 802.16 Wireless Networks
IEEE Transactions on Mobile Computing
Robust QoS Control for Single Carrier PMP Mode IEEE 802.16 Systems
IEEE Transactions on Mobile Computing
Performance evaluation of admission control and adaptive modulation in OFDMA WiMax systems
IEEE/ACM Transactions on Networking (TON)
Scheduling in IEEE 802.16e Mobile WiMAX networks: key issues and a survey
IEEE Journal on Selected Areas in Communications - Special issue on broadband access networks: Architectures and protocols
Absolute QoS differentiation in optical burst-switched networks
IEEE Journal on Selected Areas in Communications
Quality of service support in IEEE 802.16 networks
IEEE Network: The Magazine of Global Internetworking
IEEE Network: The Magazine of Global Internetworking
| Hi-index | 0.00 |
The connection-oriented nature of IEEE 802.16 (WiMAX) protocol facilitates the handling of quality of service (QoS). In IEEE 802.16 (WiMAX) networks, QoS-guaranteed connections, also referred to as service flows, can be dynamically activated between the base station and the subscriber stations, by using a three-way handshake protocol, called dynamic service addition (DSA). However, the unreliability of the radio medium may require multiple retransmission of DSA messages, leading to a delayed or even unsuccessful activation of a service flow. This paper proposes the novel concept of Quality of Activation (QoA) to guarantee the performance of the DSA protocol. Unlike QoS concept, QoA concept aims at guaranteeing the quality of the DSA message transmissions, rather than that of data transmission. In this paper, QoA is defined in terms of signaling blocking and maximum latency and is achieved by determining a set of constraints that limit the range of DSA protocol parameters. The impact of QoA requirements on protocol parameters is evaluated for various channel quality scenarios and for different types of service flows, i.e., from delay-sensitive service flows to critical and delay-insensitive service flows.