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Conference Paper: QoS guaranteed resource block allocation algorithm for LTE systems

TitleQoS guaranteed resource block allocation algorithm for LTE systems
Authors
Issue Date2011
Citation
International Conference On Wireless And Mobile Computing, Networking And Communications, 2011, p. 307-312 How to Cite?
AbstractUsing conventional resource allocation algorithms in OFDM systems, each user can employ different Modulation and Coding Scheme (MCS) on allocated subcarriers to achieve good throughput. However, in the downlink transmission of LTE systems, the minimum allocation unit for one user is Scheduling Block (SB) and all SB assigned to one user must adopt the same MCS. Therefore, the application of conventional resource allocation algorithms in LTE results in degraded performance since MCS must be chosen according to the worst SB. To solve this problem, a QoS guaranteed resource block allocation algorithm is proposed for LTE systems, which takes into account both the constraint on MCS and the requirement of Quality of Services (QoS). The proposed algorithm firstly estimates the number of SB required by each user and then allocates SBs to users according to their priorities. Simulation results show that compared to conventional schemes, the proposed algorithm can achieve high throughput as well as significant improvement in guaranteeing users' QoS requirements. © 2011 IEEE.
Persistent Identifierhttp://hdl.handle.net/10722/155713
ISSN
References

 

DC FieldValueLanguage
dc.contributor.authorGuan, Nen_US
dc.contributor.authorZhou, Yen_US
dc.contributor.authorTian, Len_US
dc.contributor.authorSun, Gen_US
dc.contributor.authorShi, Jen_US
dc.date.accessioned2012-08-08T08:34:58Z-
dc.date.available2012-08-08T08:34:58Z-
dc.date.issued2011en_US
dc.identifier.citationInternational Conference On Wireless And Mobile Computing, Networking And Communications, 2011, p. 307-312en_US
dc.identifier.issn2161-9646en_US
dc.identifier.urihttp://hdl.handle.net/10722/155713-
dc.description.abstractUsing conventional resource allocation algorithms in OFDM systems, each user can employ different Modulation and Coding Scheme (MCS) on allocated subcarriers to achieve good throughput. However, in the downlink transmission of LTE systems, the minimum allocation unit for one user is Scheduling Block (SB) and all SB assigned to one user must adopt the same MCS. Therefore, the application of conventional resource allocation algorithms in LTE results in degraded performance since MCS must be chosen according to the worst SB. To solve this problem, a QoS guaranteed resource block allocation algorithm is proposed for LTE systems, which takes into account both the constraint on MCS and the requirement of Quality of Services (QoS). The proposed algorithm firstly estimates the number of SB required by each user and then allocates SBs to users according to their priorities. Simulation results show that compared to conventional schemes, the proposed algorithm can achieve high throughput as well as significant improvement in guaranteeing users' QoS requirements. © 2011 IEEE.en_US
dc.languageengen_US
dc.relation.ispartofInternational Conference on Wireless and Mobile Computing, Networking and Communicationsen_US
dc.titleQoS guaranteed resource block allocation algorithm for LTE systemsen_US
dc.typeConference_Paperen_US
dc.identifier.emailZhou, Y:yqzhou@eee.hku.hken_US
dc.identifier.authorityZhou, Y=rp00214en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1109/WiMOB.2011.6085383en_US
dc.identifier.scopuseid_2-s2.0-84255193283en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-84255193283&selection=ref&src=s&origin=recordpageen_US
dc.identifier.spage307en_US
dc.identifier.epage312en_US
dc.identifier.scopusauthoridGuan, N=54791037600en_US
dc.identifier.scopusauthoridZhou, Y=7405367062en_US
dc.identifier.scopusauthoridTian, L=35957428000en_US
dc.identifier.scopusauthoridSun, G=55003034900en_US
dc.identifier.scopusauthoridShi, J=7404494665en_US

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