Transmission of JPEG compressed images over the wireless CDPD network
Image transmission over bandwidth limited wireless networks is becoming increasingly popular [1]. To transmit an image over a low bit rate wireless network efficiently is not an easy task, because wireless networks normally have a high bit error rate. In this thesis, we propose a Progressive Imag...
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ndltd-UBC-oai-circle.library.ubc.ca-2429-78532018-01-05T17:33:54Z Transmission of JPEG compressed images over the wireless CDPD network Wong, Michael Kwokwing Image transmission over bandwidth limited wireless networks is becoming increasingly popular [1]. To transmit an image over a low bit rate wireless network efficiently is not an easy task, because wireless networks normally have a high bit error rate. In this thesis, we propose a Progressive Image Transmission Protocol (PITP) which transmits a JPEG progressively compressed image effectively over wireless networks that support the Internet Protocol (LP), and more specifically the Cellular Digital Packet Data (CDPD) network. In the first part of the thesis, we will study the CDPD network, the LP network protocol, and the TCP and the UDP transport layer protocols. In the second part of the thesis, we will study the JPEG compression algorithm. In the last part of the thesis, we will discuss the Progressive Image Transmission Protocol (PITP) that is used to transmit an image over the CDPD wireless network. The PITP is a selective re-transmission application layer protocol which employs a JPEG progressive compression algorithm, the UDP transport protocol and a segment re-transmission algorithm. The segment retransmission algorithm is based on the priority levels of the JPEG scans and the current wireless network conditions. The segment re-transmission algorithm is so flexible that the performance of the PITP system can be adjusted by simply optimizing a few parameters in the algorithm. Simulations were performed to evaluate the efficiency and the effectiveness of the PITP. Our simulation results indicate that the PITP yields a substantially better image transmission rate than that achieved by conventional TCP/IP. Applied Science, Faculty of Electrical and Computer Engineering, Department of Graduate 2009-05-04T23:19:02Z 2009-05-04T23:19:02Z 1998 1998-05 Text Thesis/Dissertation http://hdl.handle.net/2429/7853 eng For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use. 12004013 bytes application/pdf |
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Image transmission over bandwidth limited wireless networks is becoming
increasingly popular [1]. To transmit an image over a low bit rate wireless network
efficiently is not an easy task, because wireless networks normally have a high bit error
rate. In this thesis, we propose a Progressive Image Transmission Protocol (PITP) which
transmits a JPEG progressively compressed image effectively over wireless networks that
support the Internet Protocol (LP), and more specifically the Cellular Digital Packet Data
(CDPD) network.
In the first part of the thesis, we will study the CDPD network, the LP network
protocol, and the TCP and the UDP transport layer protocols. In the second part of the
thesis, we will study the JPEG compression algorithm. In the last part of the thesis, we
will discuss the Progressive Image Transmission Protocol (PITP) that is used to transmit
an image over the CDPD wireless network. The PITP is a selective re-transmission
application layer protocol which employs a JPEG progressive compression algorithm,
the UDP transport protocol and a segment re-transmission algorithm. The segment retransmission
algorithm is based on the priority levels of the JPEG scans and the current
wireless network conditions. The segment re-transmission algorithm is so flexible that
the performance of the PITP system can be adjusted by simply optimizing a few
parameters in the algorithm. Simulations were performed to evaluate the efficiency and
the effectiveness of the PITP. Our simulation results indicate that the PITP yields a
substantially better image transmission rate than that achieved by conventional TCP/IP. === Applied Science, Faculty of === Electrical and Computer Engineering, Department of === Graduate |
author |
Wong, Michael Kwokwing |
spellingShingle |
Wong, Michael Kwokwing Transmission of JPEG compressed images over the wireless CDPD network |
author_facet |
Wong, Michael Kwokwing |
author_sort |
Wong, Michael Kwokwing |
title |
Transmission of JPEG compressed images over the wireless CDPD network |
title_short |
Transmission of JPEG compressed images over the wireless CDPD network |
title_full |
Transmission of JPEG compressed images over the wireless CDPD network |
title_fullStr |
Transmission of JPEG compressed images over the wireless CDPD network |
title_full_unstemmed |
Transmission of JPEG compressed images over the wireless CDPD network |
title_sort |
transmission of jpeg compressed images over the wireless cdpd network |
publishDate |
2009 |
url |
http://hdl.handle.net/2429/7853 |
work_keys_str_mv |
AT wongmichaelkwokwing transmissionofjpegcompressedimagesoverthewirelesscdpdnetwork |
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