Bit error rate performance of Haar wavelet based scale-code division multiple access (HW/S-CDMA) over the asynchronous AWGN channel

In this paper, we study a recently proposed multirate system, called wavelet based scale-code division multiple access (W/S-CDMA). W/S-CDMA depends on the code, time and scale orthogonality introduced by pseudo-noise (PN) sequences, and wavelets. In this system, the channel is partitioned into different scales, and each scale into time slots. In addition, the PN sequences are used in each scale to identify multiple users. In W/S-CDMA, each user is assigned a specific scale and PN sequence, and transmits its successive information symbols with its PN sequence and the wavelets in that scale. More symbols are transmitted in finer scales. We analyse the bit error rate performance of Haar wavelet based S-CDMA (HW/S-CDMA) over an asynchronous additive white Gaussian noise (AWGN) channel by using a conventional detector for deterministic PN sequences. The performance of the system is compared to that of an equivalent multirate CDMA (MR-CDMA) system for Gold and Kasami PN sequences. Results show that HW/S-CDMA outperforms MR-CDMA. In addition, because of its suitable format HW/S-CDMA is also capable of employing the optimal PN sequence families with limited number of sequences such as Kasami, Bent, etc. repeatedly in different scales. Copyright © 2006 John Wiley & Sons, Ltd.

Dergi Adı International Journal of Communication Systems
Dergi Cilt Bilgisi 20
Dergi Sayısı 4
Sayfalar 507 - 514
Yayın Yılı 2007
Eser Adı
[dc.title]
Bit error rate performance of Haar wavelet based scale-code division multiple access (HW/S-CDMA) over the asynchronous AWGN channel
Yazar
[dc.contributor.author]
Kucur O.
Yazar
[dc.contributor.author]
Öztürk E.
Yazar
[dc.contributor.author]
Atkin G.E.
Yayın Yılı
[dc.date.issued]
2007
Yayın Türü
[dc.type]
article
Özet
[dc.description.abstract]
In this paper, we study a recently proposed multirate system, called wavelet based scale-code division multiple access (W/S-CDMA). W/S-CDMA depends on the code, time and scale orthogonality introduced by pseudo-noise (PN) sequences, and wavelets. In this system, the channel is partitioned into different scales, and each scale into time slots. In addition, the PN sequences are used in each scale to identify multiple users. In W/S-CDMA, each user is assigned a specific scale and PN sequence, and transmits its successive information symbols with its PN sequence and the wavelets in that scale. More symbols are transmitted in finer scales. We analyse the bit error rate performance of Haar wavelet based S-CDMA (HW/S-CDMA) over an asynchronous additive white Gaussian noise (AWGN) channel by using a conventional detector for deterministic PN sequences. The performance of the system is compared to that of an equivalent multirate CDMA (MR-CDMA) system for Gold and Kasami PN sequences. Results show that HW/S-CDMA outperforms MR-CDMA. In addition, because of its suitable format HW/S-CDMA is also capable of employing the optimal PN sequence families with limited number of sequences such as Kasami, Bent, etc. repeatedly in different scales. Copyright © 2006 John Wiley & Sons, Ltd.
Kayıt Giriş Tarihi
[dc.date.accessioned]
2019-12-23
Açık Erişim Tarihi
[dc.date.available]
2019-12-23
Yayın Dili
[dc.language.iso]
eng
Konu Başlıkları
[dc.subject]
Code division multiple access
Konu Başlıkları
[dc.subject]
Multirate/multimedia communication
Konu Başlıkları
[dc.subject]
Wavelets
Haklar
[dc.rights]
info:eu-repo/semantics/closedAccess
ISSN
[dc.identifier.issn]
1074-5351
İlk Sayfa Sayısı
[dc.identifier.startpage]
507
Son Sayfa Sayısı
[dc.identifier.endpage]
514
Dergi Adı
[dc.relation.journal]
International Journal of Communication Systems
Dergi Sayısı
[dc.identifier.issue]
4
Dergi Cilt Bilgisi
[dc.identifier.volume]
20
Tek Biçim Adres
[dc.identifier.uri]
https://dx.doi.org/10.1002/dac.826
Tek Biçim Adres
[dc.identifier.uri]
https://hdl.handle.net/20.500.12628/4518
Görüntülenme Sayısı ( Şehir )
Görüntülenme Sayısı ( Ülke )
Görüntülenme Sayısı ( Zaman Dağılımı )
Görüntülenme
56
09.12.2022 tarihinden bu yana
İndirme
1
09.12.2022 tarihinden bu yana
Son Erişim Tarihi
25 Mayıs 2024 16:59
Google Kontrol
Tıklayınız
sequences system sequence scales multiple channel performance Kasami symbols HW/S-CDMA addition multirate different wavelets W/S-CDMA wavelet detector (MR-CDMA) Copyright conventional equivalent compared deterministic Results number employing optimal families capable limited repeatedly format suitable because MR-CDMA
6698 sayılı Kişisel Verilerin Korunması Kanunu kapsamında yükümlülüklerimiz ve çerez politikamız hakkında bilgi sahibi olmak için alttaki bağlantıyı kullanabilirsiniz.

creativecommons
Bu site altında yer alan tüm kaynaklar Creative Commons Alıntı-GayriTicari-Türetilemez 4.0 Uluslararası Lisansı ile lisanslanmıştır.
Platforms