Boon Chong Ng

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This paper investigates the dynamic property of a tropical forested channel due to the weather effect on very high frequency (VHF) and ultrahigh frequency (UHF) radio-wave propagation. In this paper, continuous-wave (CW) envelope fading waveforms are recorded over a period of 50 s with static antennas. This paper focuses on the analysis of the combined(More)
EQUALIZATION Boon Chong Ng David Gesbert Arogyswami Paulraj Information Systems Laboratory Dept. of Electrical Engineering Stanford University, Stanford, CA 94305. ABSTRACT This paper describes a direct equalization approach for channels with some underlying structure. A semi-blind approach is taken here where a small amount of training symbols is(More)
QoS service provisioning is an important issue for deploying broadband wireless access networks with real-time and non real-time traffic integrated. In order to achieve high utilization while providing different QoS supports to various applications, a QoS architecture and scheduling schemes should be embedded into the MAC protocol. In this paper, we(More)
The correlation lower bounds, as well as the set size upper bounds, of low-correlation-zone complementary sequences are presented in this paper. They can be treated as an extension of Tang-Fan-Matsufuji bounds in [2] and [3], which considered only the conventional (non-complementary) low-correlation-zone sequence sets.
This letter describes a channel estimator using known prior information about the transmit and receive lters. It is shown that the composite channel lies in the subspace of the transmit and receive lter impulse responses. A struc-tured linear channel model is then developed that is linearly parametrized by an unknown vector. To illustrate the potential(More)
This paper proposes a novel construction of analog codes based on nonlinear chaotic dynamical systems in general and the tent map in particular. In light of the importance of the symbolic coding in estimating tent chaos, the proposed construction exploit useful ideas of interleaving and parallel concatenation from classical coding theory to protect symbolic(More)
This chapter reviews space-time processing methods for CDMA mobile radio applications with emphasis on blind signal detection. We begin with a motivation for the use of blind space-time processing in CDMA. Next, we develop channel and signal models useful for blind processing. We follow this by considering rst space-time single user receivers (ST-RAKE) and(More)