Power control and group proportional fairness for frequency domain resource allocation in L-SC-FDMA based LTE uplink

Resource allocation in Long Term Evaluation (LTE) uplink is challenging because of two reasons: (1) it requires contiguous resource block allocation and (2) high complexity due to per user based power allocation among resource blocks. This paper presents a low complexity, optimal power resource allo...

Celý popis

Uloženo v:
Podrobná bibliografie
Vydáno v:Wireless networks Ročník 21; číslo 6; s. 1819 - 1834
Hlavní autoři: Ahmed, Irfan, Mohamed, Amr
Médium: Journal Article
Jazyk:angličtina
Vydáno: New York Springer US 01.08.2015
Springer Nature B.V
Témata:
Access control
Algorithms
Allocations
Analysis
Bandwidths
Blocking
Clusters
Communications Engineering
Complexity
Computer Communication Networks
Electrical Engineering
Energy management
Engineering
Fourier transforms
Heuristic
IT in Business
Mobile communication systems
Networks
Optimization
Quality of service architectures
Resource allocation
Scheduling
Studies
Wireless communication
Wireless networks
LTE
Uplink
Power allocation
Resource allocation
ISSN:1022-0038, 1572-8196
On-line přístup:Získat plný text
Tagy: Přidat tag
Žádné tagy, Buďte první, kdo vytvoří štítek k tomuto záznamu!
Popis
Shrnutí:Resource allocation in Long Term Evaluation (LTE) uplink is challenging because of two reasons: (1) it requires contiguous resource block allocation and (2) high complexity due to per user based power allocation among resource blocks. This paper presents a low complexity, optimal power resource allocation scheme for LTE uplink. We propose Virtual Cluster-based Proportional Fairness scheme that exploits the link adaptation information available at MAC layer to form virtual clusters. The distributed proportional fair scheduler ensures a minimum throughput for all users in the coverage area by assigning contiguous resource blocks, proportional to the throughput and the number of users in a particular cluster or group. Then, it allocates power to each resource block through water-filling algorithm which gives 20.2 % increase in average user throughout compared to equal power allocation. Simulations have been performed using practical scenarios of uniformly distributed users in Rician fading environment. Mathematical framework has been devised for network planning to get the best possible fairness with promising level of quality of service.
Bibliografie:SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 14
ObjectType-Article-1
ObjectType-Feature-2
content type line 23
ISSN:1022-0038
1572-8196
DOI:10.1007/s11276-014-0845-4