Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Jung-Hwa Wui"'
Publikováno v:
Sensors, Vol 17, Iss 11, p 2667 (2017)
In this paper, we model and investigate the random access (RA) performance of sensor nodes (SN) in a wireless sensor network (WSN). In the WSN, a central head sensor (HS) collects the information from distributed SNs, and jammers disturb the informat
Externí odkaz:
https://doaj.org/article/e99bf621f22947d38aeb089084c00305
Autor:
Jung-Hwa Wui, Dongwoo Kim
Publikováno v:
IEEE Transactions on Vehicular Technology. 65:9098-9111
This paper investigates collaborative spectrum sharing (CSS) for which a cognitive secondary transmitter acts as a decode-and-forward (DF) relay for two primary users (PUs) occupying an interfering multiple-access channel. PUs are assumed to send the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::710c6324fd3d3e283c6f8135776a6e81
https://doi.org/10.1109/tvt.2016.2517240
https://doi.org/10.1109/tvt.2016.2517240
Publikováno v:
Sensors (Basel, Switzerland)
Sensors; Volume 17; Issue 11; Pages: 2667
Sensors, Vol 17, Iss 11, p 2667 (2017)
Sensors; Volume 17; Issue 11; Pages: 2667
Sensors, Vol 17, Iss 11, p 2667 (2017)
In this paper, we model and investigate the random access (RA) performance of sensor nodes (SN) in a wireless sensor network (WSN). In the WSN, a central head sensor (HS) collects the information from distributed SNs, and jammers disturb the informat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d49ecd2d6cae39abb662eb58ed62a7ab
https://pubmed.ncbi.nlm.nih.gov/29156570
https://pubmed.ncbi.nlm.nih.gov/29156570
Autor:
Jung-Hwa Wui, Dongwoo Kim
Publikováno v:
IEEE Communications Letters. 18:556-559
This letter investigates resource allocation in order to exploit a collaborative secondary usage of interfering multiple access primary channel (MAPC) by a selective relay as a secondary user (SU). We optimally allocate transmit power and time slot s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7f96c6668b7c83fdf01ea52d1fa222d7
https://doi.org/10.1109/lcomm.2014.020414.132749
https://doi.org/10.1109/lcomm.2014.020414.132749
Autor:
Jung-Hwa Wui, Dongwoo Kim
Publikováno v:
IEEE Communications Letters. 15:1159-1161
This letter deals with optimal power allocation between unicast and multicast messages in a wireless relay multicasting network using superposition coding. A so-called multicast-balancing solution is provided and proved to be optimal, which maximizes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7c7e414c36ba71df31f9796676bdae76
https://doi.org/10.1109/lcomm.2011.092011.110070
https://doi.org/10.1109/lcomm.2011.092011.110070
Autor:
Dongwoo Kim, Jung-Hwa Wui
Publikováno v:
ICCC
In this paper, we propose a cognitive relaying protocol using network and superposition coding in primary multiple access channels (MAC), where two licensed primary transmitters PT 1 and PT 2 transmit to a common receiver PR with the assistance of an
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a8a70a6b34d1eed03e3902ecffafcd1a
https://doi.org/10.1109/iccchina.2012.6356959
https://doi.org/10.1109/iccchina.2012.6356959
Autor:
Jung-Hwa Wui, Dongwoo Kim
Publikováno v:
VTC Spring
We propose a cognitive relaying protocol with primary multicasting systems, where a primary transmitter broadcasts a common message to K licensed primary receivers. It typically adjusts its transmission rate to the user suffering from the worst chann
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1a9794adfe927b4425a36bbe19e3af70
https://doi.org/10.1109/vetecs.2012.6240245
https://doi.org/10.1109/vetecs.2012.6240245
Autor:
Dongwoo Kim, Jung-Hwa Wui
Publikováno v:
2011 IEEE International Conference on Signal Processing, Communications and Computing (ICSPCC).
We propose a cognitive relaying protocol using network and superposition coding in multiple access primary channels, where two licensed primary users A and B transmit to a common destination D with the assistance of an unlicensed secondary transceive
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2e557256c51d34ea8f2cea509baedf81
https://doi.org/10.1109/icspcc.2011.6061728
https://doi.org/10.1109/icspcc.2011.6061728
Autor:
Rami Lee, Seokyong Shon, Joungchel Kim, J.M. Cheong, Dongwoo Kim, Jaehwang Yu, Jung Hwa Wui, Sanghoon Seo
Publikováno v:
VTC-2005-Fall. 2005 IEEE 62nd Vehicular Technology Conference, 2005..
In this paper we present the results of measurements using a wideband wireless channel sounder and its analysis methods to propose the channel models of 2.35 GHz frequency band for wireless high speed portable internet which is named Wireless Broadba
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f4e66d57995031f36ae069fab849e4c8
https://doi.org/10.1109/vetecf.2005.1558402
https://doi.org/10.1109/vetecf.2005.1558402
Autor:
Jung-Hwa Wui, Dongwoo Kim
Publikováno v:
2011 IEEE International Conference on Signal Processing, Communications & Computing (ICSPCC); 2011, p1-5, 5p