Show/Hide Menu
Hide/Show Apps
Logout
Türkçe
Türkçe
Search
Search
Login
Login
OpenMETU
OpenMETU
About
About
Open Science Policy
Open Science Policy
Communities & Collections
Communities & Collections
Help
Help
Frequently Asked Questions
Frequently Asked Questions
Guides
Guides
Thesis submission
Thesis submission
MS without thesis term project submission
MS without thesis term project submission
Publication submission with DOI
Publication submission with DOI
Publication submission
Publication submission
Supporting Information
Supporting Information
General Information
General Information
Copyright, Embargo and License
Copyright, Embargo and License
Contact us
Contact us
Scheduling algorithms for wireless cdma networks
Download
index.pdf
Date
2007
Author
Hakyemez, Serkan Ender
Metadata
Show full item record
Item Usage Stats
229
views
41
downloads
Cite This
In recent years the need for multimedia packet data services in wireless networks has grown rapidly. To overcome that need third generation (3G) mobile services have been proposed. The fast growing demands multimedia services in 3G services brought the need for higher capacity. As a result of this, the improvement on throughput, traffic serving performance has become necessary in 3G systems. Code division multiple access (CDMA) technique is one of the most important 3G wireless mobile techniques that has been defined. The scheduling mechanisms used in CDMA plays an important role on the efficiency of the system. The power, rate and capacity parameters are variable and dependent to each other in designing a scheduling mechanism. The schedulers for CDMA decide which user will use the frequency band at which time interval with what power and rate. In this thesis different type of algorithms used in time slotted CDMA are studied and a new algorithm which supports Quality of Service (QoS) is proposed. The performance analysis of this proposed algorithm is done via simulation in comparison to selected CDMA schedulers.
Subject Keywords
Telecommunication (including telegraphy, telephone, radio, radar, television)
URI
http://etd.lib.metu.edu.tr/upload/12609050/index.pdf
https://hdl.handle.net/11511/17335
Collections
Graduate School of Natural and Applied Sciences, Thesis
Suggestions
OpenMETU
Core
Reliable real-time video communication in wireless sensor networks
Ayran, Orhan; Akan, Özgür Barış; Department of Electrical and Electronics Engineering (2007)
Many wireless sensor network (WSN) applications require efficient multimedia communication capabilities. However, the existing communication protocols in the literature mainly aim to achieve energy efficiency and reliability objectives and do not address the multimedia communication challenges in WSN. In this thesis, comprehensive performance evaluation of the existing transport protocols is performed and it has been shown that the existing proposals achieve very poor performance in terms of large set of me...
Parallel decodable channel coding implemented on a MIMO testbed
Aktaş, Tuğcan; Yılmaz, Ali Özgür; Department of Electrical and Electronics Engineering (2007)
This thesis considers the real-time implementation phases of a multiple-input multiple-output (MIMO) wireless communication system. The parts which are related to the implementation detail the blocks realized on a field programmable gate array (FPGA) board and define the connections between these blocks and typical radio frequency front-end modules assisting the wireless communication. Two sides of the implemented communication testbed are discussed separately as the transmitter and the receiver parts. In a...
The feasibility, reliable communication and networking aspects of passive wireless sensor networks
Yağlı, Mehmet; Baykal, Buyurman; Department of Electrical and Electronics Engineering (2006)
The primary challenge in wireless sensor network (WSN) deployment is the limited network lifetime due to the finite-capacity batteries. In accordance with this challenge, the vast majority of research efforts thus far have focused on the development of energy-efficient communication and computing mechanisms for WSNs. In this thesis, a fundamentally different approach and hence completely new WSN paradigm, i.e., the Passive Wireless Sensor Network (PWSN), is introduced. The objective of PWSN is to eliminate ...
Electronically tunable microwave bandstop filter design and implementation
Oruç, Sacid; Yıldırım, Nevzat; Department of Electrical and Electronics Engineering (2010)
In modern broadband microwave applications, receivers are very sensitive to interference signals which can come from the system itself or from hostile emitters. Electronically tunable bandstop filters can be used to eliminate these interference signals with adaptation to changing frequency conditions. In this thesis, electronically tunable bandstop filter design techniques are investigated for microwave frequencies. The aim is to find filter topologies which allow narrowband bandstop or ‘notch’ filter desig...
A wavalength selectable wdm source using a fiber sagnac loop filter
Ergül, Özgür; Ergül, Rüyal; Department of Electrical and Electronics Engineering (2006)
The demand for faster data transmission has been increasing since the wide acceptance of the Internet. To meet this ever increasing demand, optical communication systems use Wavelength Division Multiplexing (WDM) to transport more information per fiber by utilizing multiple wavelength channels. Multi-wavelength laser sources are one of the most important components of such WDM systems. In this thesis a multi-wavelength laser source is proposed. A fiber Sagnac loop filter is used to produce a grid pattern wi...
Citation Formats
IEEE
ACM
APA
CHICAGO
MLA
BibTeX
S. E. Hakyemez, “Scheduling algorithms for wireless cdma networks,” M.S. - Master of Science, Middle East Technical University, 2007.
