'Coding rate' diaporamas de présentation

Lecture 13

688 views • 56 slides

Networking Seminar ECE@OSU

690 views • 55 slides

On the Capacity of Information Networks

On the Capacity of Information Networks. Nick Harvey Collaborators: Micah Adler (UMass), Kamal Jain (Microsoft), Bobby Kleinberg (MIT/Berkeley/Cornell), and April Lehman (MIT/Google). What is the capacity of a network?. bottleneck edge. What is the capacity of a network?. s 2. s 1. t 1.

618 views • 51 slides

Presented by H. Mark Okada CMPT 820 February 18, 2009

Sections 14.1 - 14.4 Streaming Media on Demand and Live Broadcast Multimedia over IP and wireless networks: compression, networking, and systems Mihaela van der Schaar & Philip A. Chou. Presented by H. Mark Okada CMPT 820 February 18, 2009. Streaming Media.

495 views • 49 slides

EDA344/DIT 420, CTH/GU

577 views • 41 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: TG4a MAC Protocol Enhancement Proposal Date Submitted: July 15th, 2005 Source: Gian Mario Maggio (STMicroelectronics), Philippe Rouzet (STMicroelectronics) Contact: Gian Mario Maggio

430 views • 35 slides

390 views • 29 slides

Performances of Convolutionally-Coded QAM Constellations that Map Non-Coded Bits

Performances of Convolutionally-Coded QAM Constellations that Map Non-Coded Bits. Vasile Bota, Zsolt Polgar, Mihaly Varga. Communications Department, Technical University Cluj-Napoca. Overview. Initial Assumptions Convolutional Codes Employed parameters, rates, puncturing, decoding

427 views • 29 slides

IEEE802.11a

IEEE802.11a. ???? : ??? ?? : ???. PLCP preamble. PLCP preamble ????? ?? OFDM modulated fixed waveform The IEEE802.11SIGNAL field ,BPSK-OFDM modulated at 6 Mbit/s,shall indicate the modulation and coding rate that shall be used to transmit the MPDU

485 views • 25 slides

Bits Consideration for SIGNAL fields

Bits Consideration for SIGNAL fields. Date: 2010-05-20. Authors:. Slide 1. Abstract. 10/0382r1 was presented at Orlando meeting last March A couple of motions were passed in TGac Bandwidth and STBC indication bits are located in VHT-SIG-A

296 views • 21 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 : Performance evaluation for query-based discovery Date Submitted : September 16 th , 2013 Source: Suhwook Kim, Jinyoung Chun, Han Gyu Cho (LG Electronics)

202 views • 12 slides

Bits Consideration for SIGNAL fields

Bits Consideration for SIGNAL fields. Date: 2010-03-15. Authors:. Slide 1. Preamble Structure [1]. Rate=6Mbps Length determined by T. 2 symbols. 1 symbol. L-STF. L-LTF. L-SIG. VHTSIGA. VHT-STF. VHT-LTFs. VHTSIGB. VHTData. T. VHT auto-detection.

225 views • 12 slides

The Promise of MIMO Mobile Networks: Project Overview

The Promise of MIMO Mobile Networks: Project Overview. channel: H. Tx. Rx. SVD. V H. U. Tx. Rx. MIMO. Why MIMO? Potential for significantly increased channel capacity With rich scattering, parallel spatial channels increase the effective bandwidth and hence achievable bit rate.

249 views • 11 slides

Simulation results for 802.11a PHY in LC

Simulation results for 802.11a PHY in LC. Date: 2019-07-12. Author:. Abstract. This presentation contains the baseline (802.11a) PHY simulation results. The simulations have been carried out as described in doc. 11-19/0187r4. Outline. Simulation setup

107 views • 10 slides

Forward Error Correction

Forward Error Correction. FEC Basic Idea. Send redundant data Receiver uses it to detect/correct errors Reduces retransmissions/ NAKs Useful when RTT is high. Types of FEC. Two types of FEC Block codes (works on blocks/packets) Hamming codes, Reed-Solomon codes

204 views • 9 slides

VOCODER PLACEMENT ISSUES

VOCODER PLACEMENT ISSUES. Ericsson CDMA Systems Roger Gustavsson Qiang Gao Ake Jansson. IS-95/2000 Signaling Msgs. Vocoder. IP Network. PTSN. PTSN. Proposed Architecture Evolution. RAN. A1. MS. A2. MSC. RAN. MSC Server. A1*. IS-95/2000 Signaling Msgs. A x. MS. Vocoder. MGW.

151 views • 6 slides

I M

Multicut lower bounds via network coding. Anna Blasiak Cornell University. Multicut. Results. Given: A graph G = (V,E) C apacities for each edge k source-sink pairs Find: A min-cost subset of E such that on removal all source-sink pairs are disconnected.

171 views • 1 slides