TY  - JOUR
T1  - Achievable QoS in an interference
JF  - IEEE Journal on selected areas in communications
A1  - Capone, J.M
LA  - English
UL  - https://tuklas.up.edu.ph/Record/UP-99796217609351030
AB  - 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
KW  - QoS-sensitive error-control protocol.
KW  - TDMA frame.
KW  - TDMA-MAC.
KW  - TDMA-multiple access control.
KW  - Achievable QoS vectors.
KW  - Call admission problem.
KW  - Channel induced errors.
KW  - Delay violations.
KW  - Error-control protocol.
KW  - Interference/resource limited shared wireless channel.
KW  - Maximum tolerable packet-dropping probability.
KW  - Packet transmission times.
KW  - Performance.
KW  - Physical channel.
KW  - Quality of service.
KW  - Real-time heterogeneous VBR sources.
KW  - Scheduling policies.
KW  - Time division multiple access.
KW  - Variable bit rate.
KW  - Wireless ATM systems.
KW  - Wireless channel.
ER  -