Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Seungyoup Han"'
Publikováno v:
IEEE Transactions on Vehicular Technology. 58:2083-2088
In this paper, a framework for evaluating the bit-error-rate (BER) performance of amplify-and-forward (AF) relay-assisted cooperative transmission is provided in the presence of imperfect channel estimation. First, the AF relaying is classified into
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f373c3927f5aa8e53f492226fbbcb0a0
https://doi.org/10.1109/tvt.2008.2007644
https://doi.org/10.1109/tvt.2008.2007644
Publikováno v:
IEEE Transactions on Vehicular Technology. 58:1177-1189
In this paper, we present an accurate analytical method for an asynchronous time-hopping (TH) ultrawideband (UWB) system using multistage interference cancellation (MIC) in multipath fading channels. To model the asynchronous transmission, we first i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa6c3a63e651bbe0be3be3c5cd0a7d6d
https://doi.org/10.1109/tvt.2008.924992
https://doi.org/10.1109/tvt.2008.924992
Publikováno v:
IEEE Transactions on Communications. 56:1591-1595
This letter presents a call admission control (CAC) strategy for system throughput maximization in wireless uplink systems. This strategy considers not only the call-level quality of service (QoS) (i.e., blocking probability) but also the packet-leve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a0d5266f21420d5fd77585c2136c7d17
https://doi.org/10.1109/tcomm.2008.060536
https://doi.org/10.1109/tcomm.2008.060536
Publikováno v:
IEEE Transactions on Vehicular Technology. 57:2617-2621
This paper presents a performance analysis of reuse partitioning (RUP)-based subchannelized orthogonal frequency-division multiple-access (OFDMA) uplink systems in multicell environments. The cochannel interference (CCI) statistic is calculated for O
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3853097f856412dcc3e8239077727fe7
https://doi.org/10.1109/tvt.2007.909310
https://doi.org/10.1109/tvt.2007.909310
Publikováno v:
AEU - International Journal of Electronics and Communications. 62:464-471
Cooperative diversity is a transmission technique, where multiple terminals share their resources to form a virtual antenna array that realizes spatial diversity gain in a distributed fashion. In this paper, we focus on a performance evaluation for o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e2b417519fe90bacc496030066c459b7
https://doi.org/10.1016/j.aeue.2007.05.012
https://doi.org/10.1016/j.aeue.2007.05.012
Publikováno v:
IEEE Transactions on Vehicular Technology. 57:1934-1939
This paper presents a channel estimation scheme using a new jammed pilot detection algorithm for orthogonal frequency-division multiplexing (OFDM) systems under narrow-band jamming (NBJ).signal-to-jamming ratio The jammed pilot subcarrier can be dete
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2cfff7567a71ec04c5f940c02a55a693
https://doi.org/10.1109/tvt.2007.907314
https://doi.org/10.1109/tvt.2007.907314
Publikováno v:
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences. :1566-1570
Our investigation is presented into analysis of the co-channel interference (CCI) statistic in orthogonal frequency-division multiple access (OFDMA) uplink systems. The derived statistic is then used to analyze the performance of reuse partitioning (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::68be6ae14eefe27e52855ec71a478e17
https://doi.org/10.1093/ietfec/e89-a.6.1566
https://doi.org/10.1093/ietfec/e89-a.6.1566
Publikováno v:
VTC Fall
Distributed space-time-frequency coding (DSTFC) is a method to achieve diversity from both multipaths and user cooperations. The DSTFC has been researched by assuming that the multipath profiles of relays are the same (symmetric). However, the symmet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::229ec837cf8e59fa5376e2d626340445
https://doi.org/10.1109/vetecf.2011.6093105
https://doi.org/10.1109/vetecf.2011.6093105
Publikováno v:
MILCOM 2007 - IEEE Military Communications Conference.
In this paper, we present an improved power allocation scheme to minimize the outage probability subject to the total power constraint. For the proposed approach, the source power is determined by simplified optimization approach. The remaining power
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::80ac1f6dba4c77a2027ececfa1b351e6
https://doi.org/10.1109/milcom.2007.4454879
https://doi.org/10.1109/milcom.2007.4454879
Publikováno v:
VTC Spring
A new adaptive resource allocation scheme is proposed in orthogonal frequency-division multiple access (OFDMA) systems with rate proportionality constraints. The problem of maximizing the overall system capacity with constraints on bit-error rate, to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6d8da3d269d7866e7457e98b180e24fd
https://doi.org/10.1109/vetecs.2007.621
https://doi.org/10.1109/vetecs.2007.621