Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Chang-Yeong Oh"'
Publikováno v:
Wireless Personal Communications. 97:2249-2268
A cognitive femtocell is a new small cell based on a smart home base station to solve the spectrum-scarcity problem. Recently, dedicated resource allocation for cognitive femtocell to mitigate co-channel interference is extensively researched. Howeve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ef0a993b479ed20a1ecd5e8e0537916f
https://doi.org/10.1007/s11277-017-4606-4
https://doi.org/10.1007/s11277-017-4606-4
Publikováno v:
IEEE Transactions on Wireless Communications. 14:4182-4192
Machine-to-machine (M2M) communications, also known as machine-type communications (MTC) in 3GPP LTE systems, provide autonomous connectivity between machines without human intervention to create new service, e.g., the Internet of Things and the smar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::90961238bab0334157060a3118186964
https://doi.org/10.1109/twc.2015.2417873
https://doi.org/10.1109/twc.2015.2417873
Publikováno v:
IEEE Wireless Communications Letters. 2:531-534
We consider the joint relay and pre-coder selection in the decode-and-forward (DaF) relay network, where multiple relays are employed with multiple antennas. Depending on the channel information, the destination informs the relay and pre-coder select
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e3c3b3877e5b3e6fc6ed750cb0cac030
https://doi.org/10.1109/wcl.2013.070113.130266
https://doi.org/10.1109/wcl.2013.070113.130266
Publikováno v:
Wireless Networks. 19:1945-1960
In IEEE 802.11, the rate of a station (STA) is dynamically determined by link adaptation. Low-rate STAs tend to hog more channel time than high-rate STAs due to fair characteristics of carrier sense multiple access/collision avoidance, leading to ove
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9e7d2e15ddf0cca7df4837c120137897
https://doi.org/10.1007/s11276-013-0576-y
https://doi.org/10.1007/s11276-013-0576-y
Publikováno v:
The Journal of Korea Information and Communications Society. :1128-1137
In this paper, we propose an improved MPR selection method considering mobility and density of nodes for ad-hoc networks. In Optimized Link State Routing(OLSR), a node selects 1-hop Multi-Point Relay(MPR) nodes to cover all 2-hop neighbor nodes. In a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::21033ca07ec979a37ef72cf3bd99b1d8
https://doi.org/10.7840/kics.2012.37b.12.1128
https://doi.org/10.7840/kics.2012.37b.12.1128
Publikováno v:
The Journal of Korea Information and Communications Society. 37:657-667
In the MPR selection algorithm of Optimized Link State Routing (OLSR), each node selects own MPRs independently, so most of nodes are selected to MPR at least once. To cope with this problem, the MPR candidate selection algorithm was proposed. The MP
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2c2e1ef966f833a2440d84ce520d0b8c
https://doi.org/10.7840/kics.2012.37b.8.657
https://doi.org/10.7840/kics.2012.37b.8.657
Publikováno v:
Wireless Personal Communications. 70:1425-1442
In multi-user OFDMA systems, adaptive resource allocation has been identified as one of the key technologies to have more flexibility and higher efficiency. Several adaptive subcarrier allocation algorithms with the objective to maximize spectral eff
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::099b36141ecd227a18988b924b2610eb
https://doi.org/10.1007/s11277-012-0757-5
https://doi.org/10.1007/s11277-012-0757-5
Publikováno v:
Wireless Personal Communications. 68:417-432
The interference mitigation technique based on fractional frequency reuse (FFR) provides improved cell-edge performance with similar overall cell capacity as that of systems with the frequency reuse factor of one. Furthermore, frequency sub-band allo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b5ecdefac8536dfa3b4aa5cfb2c02780
https://doi.org/10.1007/s11277-011-0459-4
https://doi.org/10.1007/s11277-011-0459-4
Autor:
Chang-Yeong Oh, Tae-Jin Lee
Publikováno v:
Journal of Communications and Networks. 13:463-471
Cooperative communications using relays in wireless networks have similar effects of multiple-input and multiple-output without the need of multiple antennas at each node. To implement cooperation into a system, efficient protocols are desired. In IE
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::13cb8bb45bac554a30b2c3841c7a3cea
https://doi.org/10.1109/jcn.2011.6112303
https://doi.org/10.1109/jcn.2011.6112303
Publikováno v:
The KIPS Transactions:PartC. :477-486
This paper proposes a dynamic bandwidth allocation (DBA) algorithm with adaptive maximum transmission window (DBA-AMTW) to increase channel utilization in Ethernet passive optical networks (EPONs). A polling mechanism in EPON determines channel utili
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2ecd42044f692f596456beecb26d5172
https://doi.org/10.3745/kipstc.2009.16-c.4.477
https://doi.org/10.3745/kipstc.2009.16-c.4.477