A novel ternary CDMA code for TPSK modulation scheme
In code division multiple access (CDMA), two or more chips are grouped together to form symbols and each symbol is transmitted during the symbol period. The phase shift keying (PSK) modulation techniques map the digital baseband data into two or more possible signals by varying the phase of a radio...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Springer
2011
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| Online Access: | http://psasir.upm.edu.my/id/eprint/23124/ http://psasir.upm.edu.my/id/eprint/23124/1/A%20novel%20ternary%20CDMA%20code%20for%20TPSK%20modulation%20scheme.pdf |
| _version_ | 1848844670027694080 |
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| author | Ng, Chee Kyun Noordin, Nor Kamariah Mohd Ali, Borhanuddin Jamuar, Sudhanshu Shekhar |
| author_facet | Ng, Chee Kyun Noordin, Nor Kamariah Mohd Ali, Borhanuddin Jamuar, Sudhanshu Shekhar |
| author_sort | Ng, Chee Kyun |
| building | UPM Institutional Repository |
| collection | Online Access |
| description | In code division multiple access (CDMA), two or more chips are grouped together to form symbols and each symbol is transmitted during the symbol period. The phase shift keying (PSK) modulation techniques map the digital baseband data into two or more possible signals by varying the phase of a radio frequency (RF) carrier. The recently proposed PSK scheme called ternary PSK (TPSK) scheme can convey three possible symbols. In this paper, a novel ternary based CDMA sequence so-called large area synchronous even ternary (LAS-ET) sequence is introduced to increase spectrum efficiency in TPSK scheme. Its sequence duty ratio and cross-correlation are analyzed. The performance analysis of this sequence is compared with the large area synchronous (LAS) sequence in term of symbol error rate and chip error rate (CER) over various channel models. It is shown that TPSK scheme in LAS-ET sequence outperforms LAS sequence in terms of CER evaluation. At the same time, the spectrum efficiency is doubled when a pair of chips in LAS-ET sequence is mapped into one symbol. |
| first_indexed | 2025-11-15T08:34:36Z |
| format | Article |
| id | upm-23124 |
| institution | Universiti Putra Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T08:34:36Z |
| publishDate | 2011 |
| publisher | Springer |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | upm-231242015-12-07T04:22:05Z http://psasir.upm.edu.my/id/eprint/23124/ A novel ternary CDMA code for TPSK modulation scheme Ng, Chee Kyun Noordin, Nor Kamariah Mohd Ali, Borhanuddin Jamuar, Sudhanshu Shekhar In code division multiple access (CDMA), two or more chips are grouped together to form symbols and each symbol is transmitted during the symbol period. The phase shift keying (PSK) modulation techniques map the digital baseband data into two or more possible signals by varying the phase of a radio frequency (RF) carrier. The recently proposed PSK scheme called ternary PSK (TPSK) scheme can convey three possible symbols. In this paper, a novel ternary based CDMA sequence so-called large area synchronous even ternary (LAS-ET) sequence is introduced to increase spectrum efficiency in TPSK scheme. Its sequence duty ratio and cross-correlation are analyzed. The performance analysis of this sequence is compared with the large area synchronous (LAS) sequence in term of symbol error rate and chip error rate (CER) over various channel models. It is shown that TPSK scheme in LAS-ET sequence outperforms LAS sequence in terms of CER evaluation. At the same time, the spectrum efficiency is doubled when a pair of chips in LAS-ET sequence is mapped into one symbol. Springer 2011 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/23124/1/A%20novel%20ternary%20CDMA%20code%20for%20TPSK%20modulation%20scheme.pdf Ng, Chee Kyun and Noordin, Nor Kamariah and Mohd Ali, Borhanuddin and Jamuar, Sudhanshu Shekhar (2011) A novel ternary CDMA code for TPSK modulation scheme. Wireless Personal Communications, 58 (2). pp. 315-335. ISSN 0929-6212; ESSN: 1572-834X http://link.springer.com/article/10.1007%2Fs11277-009-9893-y 10.1007/s11277-009-9893-y |
| spellingShingle | Ng, Chee Kyun Noordin, Nor Kamariah Mohd Ali, Borhanuddin Jamuar, Sudhanshu Shekhar A novel ternary CDMA code for TPSK modulation scheme |
| title | A novel ternary CDMA code for TPSK modulation scheme |
| title_full | A novel ternary CDMA code for TPSK modulation scheme |
| title_fullStr | A novel ternary CDMA code for TPSK modulation scheme |
| title_full_unstemmed | A novel ternary CDMA code for TPSK modulation scheme |
| title_short | A novel ternary CDMA code for TPSK modulation scheme |
| title_sort | novel ternary cdma code for tpsk modulation scheme |
| url | http://psasir.upm.edu.my/id/eprint/23124/ http://psasir.upm.edu.my/id/eprint/23124/ http://psasir.upm.edu.my/id/eprint/23124/ http://psasir.upm.edu.my/id/eprint/23124/1/A%20novel%20ternary%20CDMA%20code%20for%20TPSK%20modulation%20scheme.pdf |