'Ds cdma' presentation slideshows

Multiple Access Techniques

Multiple Access Techniques. 2007.10 ??? / ??????. ???????. ??. Multiple Access Techniques Contentionless Multiple Access Contention Multiple Access Hanging Multiple Access MAC Issues MAC Design Issues MAC Layer Issues Technology Trends What is 4G ? Evolution Paths to 4G.

1.26k views • 69 slides

CDMA Technologies for Cellular Phone System

CDMA Technologies for Cellular Phone System. Prof. Li Pingan. Contents. Introduction Spread Spectrum Technology DS-CDMA Spreading Codes Features of CDMA RAKE Receiver Power Control Frequency Allocation Soft Handoff Conclusion. Introduction: Overview of Cellular systems.

525 views • 52 slides

CDMA Technologies for Cellular Phone System

CDMA Technologies for Cellular Phone System. July 7th, 2004 Takashi INOUE KDDI R&D Laboratories Inc. Contents. Introduction Spread Spectrum Technology DS-CDMA Spreading Codes Features of CDMA RAKE Receiver Power Control Frequency Allocation Soft Handoff Conclusion.

812 views • 48 slides

Module-3 : Transmission Lecture-9 (18/5/00)

Module-3 : Transmission Lecture-9 (18/5/00). Marc Moonen Dept. E.E./ESAT, K.U.Leuven marc.moonen@esat.kuleuven.ac.be www.esat.kuleuven.ac.be/sista/~moonen/. Lecture 9 : CDMA -Overview. Multiple Access Techniques TDMA FDMA

582 views • 45 slides

SISTEMI DI RADIOCOMUNICAZIONE

SISTEMI DI RADIOCOMUNICAZIONE. MULTI-CARRIER CDMA DIGITAL COMMUNICATION SYSTEMS. Prof. C. Regazzoni. References. [1] N. Yee, J.P. Linnartz, “Multi-Carrier CDMA in an Indoor Wireless Radio Channel”, Tech. Rep. Of University of California at Berkeley, 1994.

512 views • 35 slides

Multi-carrier CDMA Digital Communication Systems

711 views • 35 slides

Wireless Multiaccess Using Code Division Multiple Access

Wireless Multiaccess Using Code Division Multiple Access. Zartash Afzal Uzmi LUMS, Lahore. Pakistan April 18th 2003. Outline. Cellular systems Cellular concept Frequency reuse Multiaccess techniques Static Multiaccess (FDMA, TDMA) Dynamic Multiaccess and CDMA

404 views • 30 slides

Wireless Multiaccess Using Code Division Multiple Access

Wireless Multiaccess Using Code Division Multiple Access. Zartash Afzal Uzmi LUMS, Lahore. Pakistan September 14, 2002. Outline. Cellular systems Cellular concept Frequency reuse Multiaccess techniques Static Multiaccess (FDMA, TDMA) Dynamic Multiaccess and CDMA

513 views • 29 slides

James Zeidler, PI Jittra Jootar and Haichang Sui, GSRs

James Zeidler, PI Jittra Jootar and Haichang Sui, GSRs. Quantifying Performance Improvements Due to Spatial-Temporal Diversity in MIMO Spread-Spectrum Tactical Mobile Ad-hoc Networks. System of interest. DS or FH CDMA system with MIMO.

468 views • 26 slides

MC-CDMA vs DS-CDMA M. des Noes and D. Ktenas (presented by Sylvie Mayrargue)

MC-CDMA vs DS-CDMA M. des Noes and D. Ktenas (presented by Sylvie Mayrargue). Outline. Context of the comparison : Simulation assumptions Asymptotic analysis DS and MC-CDMA system models. For each detector : Linear filter description Simulation results Interpretation

444 views • 25 slides

James Zeidler, PI Haichang Sui, Jittra Jootar and Adam Anderson, GSRs

James Zeidler, PI Haichang Sui, Jittra Jootar and Adam Anderson, GSRs. Quantifying Performance Improvements Due to Spatial-Temporal Diversity in MIMO Spread-Spectrum Mobile Ad-hoc Networks. Summary of the Main Results. Coherent systems

370 views • 25 slides

Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs)

Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Title: [First Principles Analysis of UWB DS-CDMA and UWB OFDM In Multipath] Date Submitted: [ Sept 2003 ] Source: Matt Welborn; Company: XtremeSpectrum, Inc.

289 views • 24 slides

Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs)

Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Title: [First Principles Analysis of UWB DS-CDMA and UWB OFDM In Multipath] Date Submitted: [ Sept 2003 ] Source: Matt Welborn; Company: XtremeSpectrum, Inc.

338 views • 24 slides

Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs)

Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Title: [First Principles Analysis of UWB DS-CDMA and UWB OFDM In Multipath] Date Submitted: [ Sept 2003 ] Source: Matt Welborn; Company: XtremeSpectrum, Inc.

244 views • 24 slides

Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs)

Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Title: [First Principles Analysis of UWB DS-CDMA and UWB MB-OFDM In Multipath] Date Submitted: [ Sept 2003 ] Source: Matt Welborn; Company: XtremeSpectrum, Inc.

307 views • 23 slides

Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs)

Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Title: [First Principles Analysis of UWB DS-CDMA and UWB MB-OFDM In Multipath] Date Submitted: [ Sept 2003 ] Source: Matt Welborn; Company: XtremeSpectrum, Inc.

336 views • 23 slides

Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs)

Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [ Complexity and Performance Analysis of a DS-CDMA UWB System ] Date Submitted: [ 17 September, 2003 ]

201 views • 15 slides

Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs)

Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [ Complexity and Performance Analysis of a DS-CDMA UWB System ] Date Submitted: [ 17 September, 2003 ]

211 views • 15 slides

Linear Multiuser Receivers in Random Environments

Authors: David N.C. Tse , Ofer Zeitouni. Presented By Sai C. Chadalapaka. Linear Multiuser Receivers in Random Environments. Introduction Introduce receiver models Analyze the performance of Decorrelator and MMSE receiver . Antenna diversity Results Summary. Outline.

254 views • 15 slides

Multi carrier-CDMA

Multi carrier-CDMA. ???? : ??? ?? : ???. outline. Advantage of OFDM Disadvantage of OFDM Advantage of DS-CDMA Disadvantage of CDMA What is MC-CDMA Conclusion. Advantage of OFDM. OFDM is robust to frequency-selective fading.

415 views • 14 slides