Abstract
The Flexible Wireless System (FWS) has been proposed as a networked system for a User-Centric Wireless Networks (UCWN). UCWNs allow users to make network connections easily at all times without being conscious of any upgrades or differences in wireless systems. The FWS is a unified wireless platform that simultaneously deals with various types of wireless signals. It consists of flexible access points and a wireless signal processing platform. Various types of wireless signals are received at a distributed flexible access point and transferred to a server in the wireless signal processing platform through the wired access line. Transferred signals are separated and demodulated at the server. To achieve highly flexible and efficient radio wave data transfer between the access point and the server, this paper proposes a sparse-matrix-based compressed sensing method under the framework of the belief propagation and cavity method. Low cost implementation using interlevers and adders is also proposed. An empirical study with real data shows the proposed method achieves greater efficiency and reduced calculation cost compared to the conventional compressed sensing method.
| Original language | English |
|---|---|
| Title of host publication | APCC 2012 - 18th Asia-Pacific Conference on Communications: "Green and Smart Communications for IT Innovation" |
| Pages | 418-422 |
| Number of pages | 5 |
| DOIs | |
| Publication status | Published - 2012 |
| Externally published | Yes |
| Event | 18th Asia-Pacific Conference on Communications: "Green and Smart Communications for IT Innovation", APCC 2012 - Jeju Island, Korea, Republic of Duration: Oct 15 2012 → Oct 17 2012 |
Other
| Other | 18th Asia-Pacific Conference on Communications: "Green and Smart Communications for IT Innovation", APCC 2012 |
|---|---|
| Country | Korea, Republic of |
| City | Jeju Island |
| Period | 10/15/12 → 10/17/12 |
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Keywords
- belief propagation
- cavity method
- compressed sensing
- Flexible Wireless System
- sparse measurement matrix
- User-Centric Wireless Networks
ASJC Scopus subject areas
- Computer Networks and Communications
Cite this
Sparse-matrix-based compressed sensing for spectrum sensing in Flexible Wireless System. / Lee, Doohwan; Kabashima, Yoshiyuki; Takeda, Koujin; Yamada, Takayuki; Akabane, Kazunori; Uehara, Kazuhiro.
APCC 2012 - 18th Asia-Pacific Conference on Communications: "Green and Smart Communications for IT Innovation". 2012. p. 418-422 6388172.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Sparse-matrix-based compressed sensing for spectrum sensing in Flexible Wireless System
AU - Lee, Doohwan
AU - Kabashima, Yoshiyuki
AU - Takeda, Koujin
AU - Yamada, Takayuki
AU - Akabane, Kazunori
AU - Uehara, Kazuhiro
PY - 2012
Y1 - 2012
N2 - The Flexible Wireless System (FWS) has been proposed as a networked system for a User-Centric Wireless Networks (UCWN). UCWNs allow users to make network connections easily at all times without being conscious of any upgrades or differences in wireless systems. The FWS is a unified wireless platform that simultaneously deals with various types of wireless signals. It consists of flexible access points and a wireless signal processing platform. Various types of wireless signals are received at a distributed flexible access point and transferred to a server in the wireless signal processing platform through the wired access line. Transferred signals are separated and demodulated at the server. To achieve highly flexible and efficient radio wave data transfer between the access point and the server, this paper proposes a sparse-matrix-based compressed sensing method under the framework of the belief propagation and cavity method. Low cost implementation using interlevers and adders is also proposed. An empirical study with real data shows the proposed method achieves greater efficiency and reduced calculation cost compared to the conventional compressed sensing method.
AB - The Flexible Wireless System (FWS) has been proposed as a networked system for a User-Centric Wireless Networks (UCWN). UCWNs allow users to make network connections easily at all times without being conscious of any upgrades or differences in wireless systems. The FWS is a unified wireless platform that simultaneously deals with various types of wireless signals. It consists of flexible access points and a wireless signal processing platform. Various types of wireless signals are received at a distributed flexible access point and transferred to a server in the wireless signal processing platform through the wired access line. Transferred signals are separated and demodulated at the server. To achieve highly flexible and efficient radio wave data transfer between the access point and the server, this paper proposes a sparse-matrix-based compressed sensing method under the framework of the belief propagation and cavity method. Low cost implementation using interlevers and adders is also proposed. An empirical study with real data shows the proposed method achieves greater efficiency and reduced calculation cost compared to the conventional compressed sensing method.
KW - belief propagation
KW - cavity method
KW - compressed sensing
KW - Flexible Wireless System
KW - sparse measurement matrix
KW - User-Centric Wireless Networks
UR - http://www.scopus.com/inward/record.url?scp=84872549252&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84872549252&partnerID=8YFLogxK
U2 - 10.1109/APCC.2012.6388172
DO - 10.1109/APCC.2012.6388172
M3 - Conference contribution
AN - SCOPUS:84872549252
SP - 418
EP - 422
BT - APCC 2012 - 18th Asia-Pacific Conference on Communications: "Green and Smart Communications for IT Innovation"
ER -