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Link design and capacity comparison for burst transmissions of ATM cells and AAL PDU’s over broadband satellites Lo, Chi Ming
Abstract
Broadband satellite will be an important element in the future Broadband Integrated Service Digital Networks (B-ISDNs) employing Asynchronous Transfer Mode (ATM) for connecting different B-ISDN islands. The main challenge is to maximize traffic capacity while meeting the diverse Quality of Service (QoS) requirements of different types of B-ISDN service. Furthermore, inefficient utilization of transponder power and/or bandwidth and reduced traffic capacity may be caused by link designs that satisfy the most stringent QoS requirements of the traffic mix. Different Forward Error Correction (FEC) coding techniques are thus investigated to optimize the satellite link designs for any given B-ISDN service. Four concatenated codes (CCs) have been chosen, employing an inner convolutional code, in concatenation with one of the four alternate short Reed-Solomon (RS) outer codes for evaluations. Furthermore, a novel partially-concatenated code (PCC) method is proposed to improve bandwidth efficiency without significantly reducing power efficiency. A PCC with RS(15,10) outer code is determined to be the best combination by balancing the trade-offs between error performance and ability to encode a single ATM cell. In addition, ATM Adaptation Layer Protocol Data Units (AAL PDUs) are considered to be transmitted directly into a physical medium without segmenting into ATM cells. In this way, traffic capacity may be increased. Finally, given all the relevant parameters, link budgets can be used to obtain the traffic capacities for different services. From the traffic capacity analysis, AAL PDU transport provides a capacity increase of at least 10% over that of. the ATM cell transport. This result indicates that AAL PDU transport may be considered as an alternate means for transmitting data over Broadband Satellite Networks (BSNs).
Item Metadata
Title |
Link design and capacity comparison for burst transmissions of ATM cells and AAL PDU’s over broadband satellites
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Creator | |
Publisher |
University of British Columbia
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Date Issued |
1996
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Description |
Broadband satellite will be an important element in the future Broadband Integrated
Service Digital Networks (B-ISDNs) employing Asynchronous Transfer Mode (ATM) for
connecting different B-ISDN islands. The main challenge is to maximize traffic capacity
while meeting the diverse Quality of Service (QoS) requirements of different types of B-ISDN
service. Furthermore, inefficient utilization of transponder power and/or bandwidth and
reduced traffic capacity may be caused by link designs that satisfy the most stringent QoS
requirements of the traffic mix. Different Forward Error Correction (FEC) coding techniques
are thus investigated to optimize the satellite link designs for any given B-ISDN service.
Four concatenated codes (CCs) have been chosen, employing an inner convolutional
code, in concatenation with one of the four alternate short Reed-Solomon (RS) outer codes for
evaluations. Furthermore, a novel partially-concatenated code (PCC) method is proposed to
improve bandwidth efficiency without significantly reducing power efficiency. A PCC with
RS(15,10) outer code is determined to be the best combination by balancing the trade-offs
between error performance and ability to encode a single ATM cell. In addition, ATM Adaptation
Layer Protocol Data Units (AAL PDUs) are considered to be transmitted directly into a
physical medium without segmenting into ATM cells. In this way, traffic capacity may be
increased. Finally, given all the relevant parameters, link budgets can be used to obtain the
traffic capacities for different services. From the traffic capacity analysis, AAL PDU transport
provides a capacity increase of at least 10% over that of. the ATM cell transport. This result
indicates that AAL PDU transport may be considered as an alternate means for transmitting
data over Broadband Satellite Networks (BSNs).
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Extent |
5550164 bytes
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Genre | |
Type | |
File Format |
application/pdf
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Language |
eng
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Date Available |
2009-03-06
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Provider |
Vancouver : University of British Columbia Library
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Rights |
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.
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DOI |
10.14288/1.0065100
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URI | |
Degree | |
Program | |
Affiliation | |
Degree Grantor |
University of British Columbia
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Graduation Date |
1997-05
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Campus | |
Scholarly Level |
Graduate
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Aggregated Source Repository |
DSpace
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Item Media
Item Citations and Data
Rights
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.