Zobrazeno 1 - 10
of 43
pro vyhledávání: '"Younghoon Whang"'
Publikováno v:
IET Communications. 10:1131-1137
In this study, the authors propose a low-complexity symbol-level combining (SLC) scheme for Chase combining-based hybrid automatic repeat request in multiple-input multiple-output systems with a linear receiver. In the proposed scheme, a subset of al
Publikováno v:
IET Communications. 9:2208-2215
A packet transmission strategy for multiple-input multiple-output systems with interference cancellation detection and hybrid automatic repeat request (HARQ) processes is proposed. The error probability and throughput of such a system depend on the c
Publikováno v:
IEEE Transactions on Wireless Communications. 11:3714-3722
In this paper, an extended detection scheme is proposed for multiple-input multiple-output (MIMO) systems which employ partial incremental redundancy (IR) based hybrid automatic repeat request (HARQ). Based on the extended MIMO system model that inte
Publikováno v:
IEEE Transactions on Wireless Communications. 10:3354-3367
In this paper, optimal pilot sequence designs for MIMO-OFDM systems in multi-cell environments are provided. The proposed multi-cell optimality criterion is to minimize the worst-case MSE of an LS-based channel estimator. To satisfy the multi-cell op
Publikováno v:
IEICE Transactions on Communications. :334-337
In this paper, we propose and analyze a multi-level acknowledgement scheme for hybrid ARQ (H-ARQ) systems, which modifies the general ACK/NAK signals to represent multilevel information. For instance, the other signals except the ACK/NAK signals may
Publikováno v:
IEEE Signal Processing Letters. 15:633-636
In this letter, a novel time-domain recursive algorithm is proposed for a minimum-mean-squared error (MMSE) with successive interference cancellation (SIC) scheme. This algorithm allows us to reduce the complexity of classical MMSE-SIC equalizer for
Publikováno v:
VTC Spring
The goal of this paper is to develop a hybrid automatic repeat request (HARQ) transmission state control algorithm for multiple-input multiple- output (MIMO) systems with interference cancellation (IC) detection to improve throughput. The HARQ transm
Publikováno v:
IEICE Transactions on Communications. :405-407
In this paper, we investigate an efficient user selection and sub-band allocation algorithm in which each user transmits two-step partial CQI to reduce the amount of feedback in multi-user downlink OFDMA systems. Simulation results show that we can g
Publikováno v:
IEICE Transactions on Information and Systems. :2603-2605
This paper presents a Fault-Tolerant Object Group (FTOG) model that provides the group management service and the fault-tolerance service for consistency maintenance and state transparency. Through Intelligent Home Network Simulator, we verify that F
Publikováno v:
VTC Spring