Achievable QoS in an interference/resource limited shared wireless channel

In this work, the region of achievable quality-of-service (QoS) is precisely described for a system of real-time heterogeneous variable bit rate (VBR) sources competing for slots (packet transmission times) of a time division multiple access (TDMA) frame. The QoS for each application is defined in terms of a maximum tolerable packet-dropping probability. Packets may be dropped due to delay violations and channel induced errors. The region of achievable QoS is precisely described for an interference/resource limited network by considering the underlying TDMA-multiple access control (TDMA-MAC) structure and the physical channel. A simple QoS-sensitive error-control protocol that combats the effects of the wireless channel while satisfying the real-time requirements is proposed and its impact on the region of achievable QoS is evaluated. The results presented here clearly illustrate the negative impact of a poor channel and the positive impact of the employed error-control protocol on the achievable QoS. The region of achievable QoS vectors is central to the call admission problem, and in this work, it is used to identify a class of scheduling policies capable of delivering any achievable performance.

[1]  Dipankar Raychaudhuri,et al.  Packet CDMA Versus Dynamic TDMA for Multiple Access in an Integrated Voice/Data PCN , 1993, IEEE J. Sel. Areas Commun..

[2]  Dipankar Raychaudhuri,et al.  WATMnet: a prototype wireless ATM system for multimedia personal communication , 1996, Proceedings of ICC/SUPERCOMM '96 - International Conference on Communications.

[3]  Jin-Fu Chang,et al.  Guaranteed quality-of-service wireless access to atm , 1996 .

[4]  Y.-H. Jeon,et al.  Achievability of combined GOS requirements in broadband networks , 1993, Proceedings of ICC '93 - IEEE International Conference on Communications.

[5]  A. Brøndsted.  An Introduction to Convex Polytopes , 1982 .

[6]  Ioannis Stavrakakis,et al.  Delivering diverse delay/dropping QoS requirements in a TDMA environment , 1997, MobiCom '97.

[7]  Ioannis Stavrakakis,et al.  Achievable QoS and Scheduling Policies for Integrated Services Wireless Networks , 1996, Perform. Evaluation.

[8]  Satoru Aikawa,et al.  Cell Discard and TDMA Synchronization Using FEC in Wireless ATM Systems , 1997, IEEE J. Sel. Areas Commun..

[9]  Ioannis Stavrakakis,et al.  ATM traffic management with diversified loss and delay requirements , 1996, Proceedings of IEEE INFOCOM '96. Conference on Computer Communications.

[10]  Dietmar Petras,et al.  Performance Evaluation of a Logical Link Control Protocol for an ATM Air Interface , 1997, Int. J. Wirel. Inf. Networks.

[11]  Bhaskar Ramamurthi,et al.  Packet reservation multiple access for local wireless communications , 1989, IEEE Trans. Commun..

[12]  Dipankar Raychaudhuri,et al.  UPC based bandwidth allocation for VBR video in wireless ATM links , 1997, Proceedings of ICC'97 - International Conference on Communications.

[13]  J. Bibb Cain,et al.  A Recommended Error Control Architecture for ATM Networks with Wireless Links , 1997, IEEE J. Sel. Areas Commun..

[14]  Dietmar Petras,et al.  Wireless ATM: air interface and network protocols of the mobile broadband system , 1996, IEEE Wirel. Commun..

[15]  D. Raychaudhuri,et al.  ATM-based transport architecture for multiservices wireless personal communication networks , 1994, IEEE J. Sel. Areas Commun..

[16]  Giuseppe Anastasi,et al.  An Access Protocol for Speech/Data/Video Integration in TDMA-Based Advanced Mobile Systems , 1997, IEEE J. Sel. Areas Commun..

[17]  I. Stavrakakis,et al.  Determining the call admission region for real-time heterogeneous applications in wireless TDMA networks , 1998 .

[18]  Walter C. Milliken,et al.  Integration of Voice and Data in the Wideband Packet Satellite Network , 1983, IEEE J. Sel. Areas Commun..

[19]  D.F. Bantz,et al.  Wireless LAN design alternatives , 1994, IEEE Network.