1 / 9

Project: IEEE 802.15 Study Group for Wireless Personal Area Networks (WPANs)

Project: IEEE 802.15 Study Group for Wireless Personal Area Networks (WPANs) Submission Title: [ An Alternativetive Concatenated Code Option for TG4a ] Date Submitted: [November 2005] Source: [Shahriar Emami and Celestino A. Corral]: Company1 [Freescale Semiconductor]

tekli
Download Presentation

Project: IEEE 802.15 Study Group for Wireless Personal Area Networks (WPANs)

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Project: IEEE 802.15 Study Group for Wireless Personal Area Networks (WPANs) Submission Title: [An Alternativetive Concatenated Code Option for TG4a] Date Submitted:[November 2005] Source: [Shahriar Emami and Celestino A. Corral]: Company1 [Freescale Semiconductor] Address [Freescale Semiconductor, Inc. 6100 Broken Sound Pkwy., N.W. Suite 1 Boca Raton, FL  33487-2790] Voice: [(561) 544-4064] Re: [802.15.4a] Abstract: [Captures the characteristics of TG4a coding schemes.] Purpose: [To assist designers in coding selection] Notice: This document has been prepared to assist the IEEE P802.15. It is offered as a basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in this document is subject to change in form and content after further study. The contributor(s) reserve(s) the right to add, amend or withdraw material contained herein. Release: The contributor acknowledges and accepts that this contribution becomes the property of IEEE and may be made publicly available by P802.15. Shahriar Emami, Freescale Semiconductor

  2. Option I: Modulation[IEEE 15-05-617-01-004a] 2 PPM Shahriar Emami, Freescale Semiconductor

  3. Option II: Modulation [IEEE 15-05-617-01-004a] 4 PPM Shahriar Emami, Freescale Semiconductor

  4. Option III: Modulation [IEEE 15-05-617-01-004a] 8 PPM Shahriar Emami, Freescale Semiconductor

  5. Non-Coherent Receiver Performance in AWGN Options I,II and III achieve EbNo of 12.5, 9.8 and 8 dB for 1% PER. Option III is superior to others Shahriar Emami, Freescale Semiconductor

  6. Option III-b: Coding & Performance [IEEE 15-05-617-01-004a] Among all options, option III-b achieves the best performance Non-coherent Rx. achieves 1% PER at EbNo = 5.75 dB Shahriar Emami, Freescale Semiconductor

  7. RS Code Block Size • In many sensor networks very few information bits are transmitted at a time. • Short packets need to be stuffed with zeros to reach minimum RS code block size. • RS code would be wasteful for these applications. Shahriar Emami, Freescale Semiconductor

  8. Option III-c • Replace RS (51,43) code with a rate 5/6 convolutional code - Rs code rate 0.843 - Convolutional code rate 0.833 • Rate 5/6 convolutional code can be obtained by puncturing rate ½ code with puncturing matrix P=[ 10100;11011 ]. Shahriar Emami, Freescale Semiconductor

  9. Non-Coherent Receiver Performance of III-c in AWGN Hard decision III-c performance is shown above With soft Decision III-c performance will be as good as III-b Shahriar Emami, Freescale Semiconductor

More Related