Performance Analysis of Hybrid ARQ Protocols in a Slotted Code Division Multiple-Access Network

reportActive / Technical Report | Accession Number: ADA211078 | Open PDF

Abstract:

A link throughput-delay analysis is presented for a slotted direct- sequence spread-spectrum multiple-access packet radio network PRN operating in the presence of background noise, multiple-access interference, and pulsed jammer noise. The PRN is comprised of an arbitrary number of full-duplex radio units arranged in a paired-off topology. Slotted ALOHA random access is used in conjunction with CDMA for channel access and a type I hybrid ARQ is used for error control. Expression are derived for the link throughput-delay in terms of the channel cutoff rate and capacity. With the friendly objective of maximizing the link throughput, and the enemy objective of minimizing the link throughput, the dependency of the optimal retransmission probability, processing gain, code rate, and jamming fraction on the population size, traffic intensity, bit energy-to-background-noise ratio, is examined in detail. It is shown that properly designed optimized PRN using random-access CDMA offers a significantly larger heavy load throughput than a random-access PRN. Theses.

Author(s):
Hanratty, Joseph M.
Author Organization(s):
GEORGIA INST OF TECH ATLANTA
Descriptive Note:
Final rept.
Supplementary Note:
Doctoral thesis.
Pagination:
0157

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Monitor Series:
ONR
 Subject Terms
Joint Capability Areas:
JCA_6_Net Centric; JCA_6.1.3_Switching and Routing; JCA_6.1_Information Transport; JCA_5_Command and Control; JCA_7.1.2_Prevent Non-kinetic Attack; JCA_7.1_Prevent; JCA_7_Protection; JCA_5.3_Planning; JCA_3.2_Engagement; JCA_3_Force Application; JCA_3.2.2_Non-Kinetic Means; JCA_1.4.1_Force Health Protection; JCA_1.4_Force Support; JCA_6.3.3_Spectrum Management; JCA_6.3.1_Optimized Network Functions and Resources; JCA_6.3.4_Cyber Management; JCA_6.3_Net Management; JCA_1_Force Support; JCA_1.3_Human Capital Management; JCA_1.2_Force Preparation; JCA_5.2.2_Develop Knowledge and Situational Awareness
Communities of Interest:
Energy and Power Technologies
Descriptor(s):
*CONTROL, *CODING, *RETRANSMISSION, *BACKGROUND NOISE, *CHANNELS, *HYBRID SYSTEMS, *MULTIPLE ACCESS, *RANDOM ACCESS COMPUTER STORAGE, *PROCESSING, THESES, OPTIMIZATION, JAMMING, NOISE, PULSES, ERRORS, GAIN, INTERFERENCE, THROUGHPUT, RATES, INTENSITY, PROBABILITY, ACCESS, TRAFFIC, PERFORMANCE TESTS, SIZES(DIMENSIONS), POPULATION
Field(s)/Group(s):
Cybernetics, Radio Communications, Command, Control and Communications Systems
Report Date:
1989 Aug 01