The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
Copyrights notice
The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
pandangan teks lengkap
126
Untuk memenuhi keperluan platform bersatu yang boleh menangani pelbagai sistem radio wayarles secara fleksibel, kami mencadangkan dan melaksanakan sistem rangkaian heterogen yang terdiri daripada titik capaian fleksibel teragih dan unit pemprosesan isyarat bebas protokol. Titik capaian fleksibel yang diedarkan ialah peranti RF jauh yang melaksanakan penerimaan berbilang jenis data gelombang radio dan memindahkan data yang diterima ke unit pemprosesan isyarat bebas protokol melalui rangkaian capaian berwayar. Unit pemprosesan isyarat bebas protokol melaksanakan pelbagai jenis analisis isyarat oleh perisian. Untuk merealisasikan penerimaan dan pemindahan data gelombang radio yang sangat fleksibel dan cekap, kami menggunakan teknologi penderiaan mampat yang dibangunkan baru-baru ini. Selain itu, kami mencadangkan gabungan Nyquist dan kaedah pensampelan termampat untuk isyarat penyahkodan untuk dijadikan sampel pada kadar Nyquist dan untuk isyarat penderiaan untuk disampel pada kadar termampat. Untuk tujuan ini, isyarat penyahkodan dan isyarat penderiaan ditukar kepada frekuensi jalur perantaraan (IF) dan bercampur. Dalam jalur IF, isyarat penyahkodan ditetapkan pada frekuensi tengah yang lebih rendah daripada isyarat penderiaan. Isyarat yang ditukar ke bawah diambil sampel pada kadar empat kali lebar lebar keseluruhan isyarat penyahkodan ditambah dua kali ganda lebar lebar keseluruhan isyarat penderiaan. Tujuan tetapan di atas adalah untuk menjalankan kadar Nyquist dan pensampelan kadar termampat secara serentak dalam satu ADC. Kemudian, semua sampel ganjil (atau genap) dipelihara dan beberapa sampel genap (atau ganjil) dibuang secara rawak. Kaedah ini mengurangkan beban pemindahan data dalam menangani isyarat penderiaan sambil menjamin pencapaian prestasi penyahkodan kadar Nyquist. Hasil simulasi dan eksperimen mengesahkan kecekapan kaedah yang dicadangkan.
The copyright of the original papers published on this site belongs to IEICE. Unauthorized use of the original or translated papers is prohibited. See IEICE Provisions on Copyright for details.
Salinan
Doohwan LEE, Takayuki YAMADA, Hiroyuki SHIBA, Yo YAMAGUCHI, Kazuhiro UEHARA, "Combined Nyquist and Compressed Sampling Method for Radio Wave Data Compression of a Heterogeneous Network System" in IEICE TRANSACTIONS on Communications,
vol. E93-B, no. 12, pp. 3238-3247, December 2010, doi: 10.1587/transcom.E93.B.3238.
Abstract: To satisfy the requirement of a unified platform which can flexibly deal with various wireless radio systems, we proposed and implemented a heterogeneous network system composed of distributed flexible access points and a protocol-free signal processing unit. Distributed flexible access points are remote RF devices which perform the reception of multiple types of radio wave data and transfer the received data to the protocol-free signal processing unit through wired access network. The protocol-free signal processing unit performs multiple types of signal analysis by software. To realize a highly flexible and efficient radio wave data reception and transfer, we employ the recently developed compressed sensing technology. Moreover, we propose a combined Nyquist and compressed sampling method for the decoding signals to be sampled at the Nyquist rate and for the sensing signals to be sampled at the compressed rate. For this purpose, the decoding signals and the sensing signals are converted into the intermediate band frequency (IF) and mixed. In the IF band, the decoding signals are set at lower center frequencies than those of the sensing signals. The down converted signals are sampled at the rate of four times of the whole bandwidth of the decoding signals plus two times of the whole bandwidth of the sensing signals. The purpose of above setting is to simultaneously conduct Nyquist rate and compressed rate sampling in a single ADC. Then, all of odd (or even) samples are preserved and some of even (or odd) samples are randomly discarded. This method reduces the data transfer burden in dealing with the sensing signals while guaranteeing the realization of Nyquist-rate decoding performance. Simulation and experiment results validate the efficiency of the proposed method.
URL: https://global.ieice.org/en_transactions/communications/10.1587/transcom.E93.B.3238/_p
Salinan
@ARTICLE{e93-b_12_3238,
author={Doohwan LEE, Takayuki YAMADA, Hiroyuki SHIBA, Yo YAMAGUCHI, Kazuhiro UEHARA, },
journal={IEICE TRANSACTIONS on Communications},
title={Combined Nyquist and Compressed Sampling Method for Radio Wave Data Compression of a Heterogeneous Network System},
year={2010},
volume={E93-B},
number={12},
pages={3238-3247},
abstract={To satisfy the requirement of a unified platform which can flexibly deal with various wireless radio systems, we proposed and implemented a heterogeneous network system composed of distributed flexible access points and a protocol-free signal processing unit. Distributed flexible access points are remote RF devices which perform the reception of multiple types of radio wave data and transfer the received data to the protocol-free signal processing unit through wired access network. The protocol-free signal processing unit performs multiple types of signal analysis by software. To realize a highly flexible and efficient radio wave data reception and transfer, we employ the recently developed compressed sensing technology. Moreover, we propose a combined Nyquist and compressed sampling method for the decoding signals to be sampled at the Nyquist rate and for the sensing signals to be sampled at the compressed rate. For this purpose, the decoding signals and the sensing signals are converted into the intermediate band frequency (IF) and mixed. In the IF band, the decoding signals are set at lower center frequencies than those of the sensing signals. The down converted signals are sampled at the rate of four times of the whole bandwidth of the decoding signals plus two times of the whole bandwidth of the sensing signals. The purpose of above setting is to simultaneously conduct Nyquist rate and compressed rate sampling in a single ADC. Then, all of odd (or even) samples are preserved and some of even (or odd) samples are randomly discarded. This method reduces the data transfer burden in dealing with the sensing signals while guaranteeing the realization of Nyquist-rate decoding performance. Simulation and experiment results validate the efficiency of the proposed method.},
keywords={},
doi={10.1587/transcom.E93.B.3238},
ISSN={1745-1345},
month={December},}
Salinan
TY - JOUR
TI - Combined Nyquist and Compressed Sampling Method for Radio Wave Data Compression of a Heterogeneous Network System
T2 - IEICE TRANSACTIONS on Communications
SP - 3238
EP - 3247
AU - Doohwan LEE
AU - Takayuki YAMADA
AU - Hiroyuki SHIBA
AU - Yo YAMAGUCHI
AU - Kazuhiro UEHARA
PY - 2010
DO - 10.1587/transcom.E93.B.3238
JO - IEICE TRANSACTIONS on Communications
SN - 1745-1345
VL - E93-B
IS - 12
JA - IEICE TRANSACTIONS on Communications
Y1 - December 2010
AB - To satisfy the requirement of a unified platform which can flexibly deal with various wireless radio systems, we proposed and implemented a heterogeneous network system composed of distributed flexible access points and a protocol-free signal processing unit. Distributed flexible access points are remote RF devices which perform the reception of multiple types of radio wave data and transfer the received data to the protocol-free signal processing unit through wired access network. The protocol-free signal processing unit performs multiple types of signal analysis by software. To realize a highly flexible and efficient radio wave data reception and transfer, we employ the recently developed compressed sensing technology. Moreover, we propose a combined Nyquist and compressed sampling method for the decoding signals to be sampled at the Nyquist rate and for the sensing signals to be sampled at the compressed rate. For this purpose, the decoding signals and the sensing signals are converted into the intermediate band frequency (IF) and mixed. In the IF band, the decoding signals are set at lower center frequencies than those of the sensing signals. The down converted signals are sampled at the rate of four times of the whole bandwidth of the decoding signals plus two times of the whole bandwidth of the sensing signals. The purpose of above setting is to simultaneously conduct Nyquist rate and compressed rate sampling in a single ADC. Then, all of odd (or even) samples are preserved and some of even (or odd) samples are randomly discarded. This method reduces the data transfer burden in dealing with the sensing signals while guaranteeing the realization of Nyquist-rate decoding performance. Simulation and experiment results validate the efficiency of the proposed method.
ER -