Change search
ReferencesLink to record
Permanent link

Direct link
Delay Sensitive Services In Multichannel Random Access Networks With Selfish Users
KTH, School of Information and Communication Technology (ICT).
2012 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

Because of the scarcity of spectrum, it is becoming more and more important to use the spectrum efficiently. Dynamic spectrum allocation schemes are proposed to increase the efficiency of spectrum usage. Meanwhile, delay-sensitive services like voice service are still a strong contributor to operator revenues and constitute a significant portion of user demand. Therefore, it is valuable to study whether delay-sensitive services like voice service can be provided in multichannel random access network, in which multiple operators use the unlicensed spectrum and decentralized dynamic spectrum allocation scheme is adopted.

In this study, two User Reinforcement Learning schemes are proposed to model the behavior of selfish users in the multichannel random access network. We analyze the performance of these two schemes and compare them with Operator Reinforcement Learning scheme and Operator Non-Reinforcement Learning scheme in terms of delay, jitter, packet loss rate, consecutive packet loss rate, throughput per channel and utility per user.

We find that both the "User Reinforcement Learning Non-Retransmission" scheme and the "Operator Reinforcement Learning" scheme can provide a satisfactory quality service under a moderately high load.

Place, publisher, year, edition, pages
2012. , 48 p.
Trita-ICT-EX, 2012:214
National Category
Engineering and Technology
URN: urn:nbn:se:kth:diva-102774OAI: diva2:556516
Educational program
Master of Science - Wireless Systems
Available from: 2012-09-26 Created: 2012-09-25 Last updated: 2012-09-26Bibliographically approved

Open Access in DiVA

fulltext(1024 kB)496 downloads
File information
File name FULLTEXT01.pdfFile size 1024 kBChecksum SHA-512
Type fulltextMimetype application/pdf

By organisation
School of Information and Communication Technology (ICT)
Engineering and Technology

Search outside of DiVA

GoogleGoogle Scholar
Total: 496 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 48 hits
ReferencesLink to record
Permanent link

Direct link