Difference between revisions of "Private:Ahmed Reading Summaries"

Revision as of 16:13, 20 July 2009

Will summarize the readings here..

Peer-to-Peer and SVC

Peer-Driven Video Streaming: Multiple Descriptions versus Layering
Layered Coding vs. Multiple Descriptions for Video Streaming over Multiple Paths
Evaluation of the H.264 Scalable Video Coding in Error Prone IP Networks
Overview of the Scalable Video Coding Extension of the H.264/AVC Standard
Enabling Adaptive Video Streaming in P2P Systems

Long Term Evolution (LTE)

Mobile Video Transmission Using Scalable Video Coding
LTE - An Introduction
Optimal Transmission Scheduling for Scalable Wireless Video Broadcast with Rateless Erasure Correction Code
Dynamic Session Control for Scalable Video Coding over IMS
Chapter-11: Long Term Evolution of 3GPP [Mobile Broadband: Including WiMAX and LTE]
Chapter-11: MBMS: Multimedia Broadcast Multicast Service [3G Evolution HSPA and LTE for Mobile Broadband]
Chapter-2: Network Architecture [The UMTS Long Term Evolution: From Theory to Practice]
Chapter-14: Broadcast Operation [The UMTS Long Term Evolution: From Theory to Practice]

MBMS

Introduced for WCDMA (UMTS) in Release 6
Supports multicast/broadcast services in a cellular system
Same content is transmitted to multiple users located in a specific area (MBMS service area) in a unidirectional fashion
The Broadcast Multicast Service Center (BM-SC) node is responsible for authorization and authentication of content provider, charging, and overall data flow through Core Network (CN)
In case of multicast, a request to join the session has to be sent to become member of the corresponding MBMS service group
In contrast to previous releases of Universal Terrestrial Radio Area Network (UTRAN), in MBMS a data stream intended for multiple users is not split until necessary (in UTRAN, one stream per user existed both within CN and RAN)
MBMS services are power limited and maximize the diversity without relying on feedback from users
Two techniques are used to provide diversity:
- Macro-diversity: combining transmission from multiple cells
  - Soft combining: combines the soft bits received from the different radio links prior to (Turbo) coding
  - Selection combining: decoding the signal received from each cell individually, and for each TTI selects one (if any) of the correctly decoded data blocks for further processing by higher layers
- Time-diversity: against fast fading through a long Transmission Time Interval (TTI) and application-level coding

@@ Line 19: / Line 19: @@
 * Chapter-2: Network Architecture [The UMTS Long Term Evolution: From Theory to Practice]
 * Chapter-14: Broadcast Operation [The UMTS Long Term Evolution: From Theory to Practice]
+==== MBMS ====
+* Introduced for WCDMA (UMTS) in Release 6
+* Supports multicast/broadcast services in a cellular system
+* Same content is transmitted to multiple users located in a specific area (MBMS service area) in a unidirectional fashion
+* The Broadcast Multicast Service Center (BM-SC) node is responsible for authorization and authentication of content provider, charging, and overall data flow through Core Network (CN)
+* In case of multicast, a request to join the session has to be sent to become member of the corresponding MBMS service group
+* In contrast to previous releases of Universal Terrestrial Radio Area Network (UTRAN), in MBMS a data stream intended for multiple users is not split until necessary (in UTRAN, one stream per user existed both within CN and RAN)
+* MBMS services are power limited and maximize the diversity ''without relying on feedback from users''
+* Two techniques are used to provide diversity:
+** Macro-diversity: combining transmission from multiple cells
+*** Soft combining: combines the soft bits received from the different radio links prior to (Turbo) coding
+*** Selection combining: decoding the signal received from each cell individually, and for each TTI selects one (if any) of the correctly decoded data blocks for further processing by higher layers
+** Time-diversity: against fast fading through a long Transmission Time Interval (TTI) and application-level coding