Analysis of the Tradeoff between Delay and Source Rate in Multiuser Wireless Systems
<p/> <p>This work addresses the limits on the information that can be transmitted over the wireless channel under the conditions stated by the MAC layer: a selected scheduling discipline and an ensured level of QoS. Based on the effective bandwidth theory, the joint influence of the chan...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2010-01-01
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| Series: | EURASIP Journal on Wireless Communications and Networking |
| Online Access: | http://jwcn.eurasipjournals.com/content/2010/726750 |
| Summary: | <p/> <p>This work addresses the limits on the information that can be transmitted over the wireless channel under the conditions stated by the MAC layer: a selected scheduling discipline and an ensured level of QoS. Based on the effective bandwidth theory, the joint influence of the channel fading, the data outsourcing process, and the scheduling discipline in the QoS metrics are studied. We obtain a closed-form expression of the vector of attainable users' rates <inline-formula> <graphic file="1687-1499-2010-726750-i1.gif"/></inline-formula> for several scheduling algorithms, representing the maximum constant rate that the uth user can transmit under the selected discipline and fulfilling a target Bit Error Rate (BER) and the delay constraint given by the pair <inline-formula> <graphic file="1687-1499-2010-726750-i2.gif"/></inline-formula>, where <inline-formula> <graphic file="1687-1499-2010-726750-i3.gif"/></inline-formula> is the target delay and <inline-formula> <graphic file="1687-1499-2010-726750-i4.gif"/></inline-formula> is the probability of exceeding <inline-formula> <graphic file="1687-1499-2010-726750-i5.gif"/></inline-formula>.</p> |
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| ISSN: | 1687-1472 1687-1499 |