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- Chi Wan Sung, Kin Kwong Leung
- IEEE Trans. Information Theory
- 2005

- Kin Kwong Leung, Chi Wan Sung
- IEEE/ACM Transactions on Networking
- 2006

We propose an opportunistic power control algorithm, which exploits channel fluctuation in order to maximize system throughput. The basic idea is that it instructs a transmitter to increase its power when the channel is good and to decrease its power when the channel is bad. The transmission rate is adjusted according to the received signal-to-interference… (More)

- Kenneth W. Shum, Kin Kwong Leung, Chi Wan Sung
- IEEE Journal on Selected Areas in Communications
- 2007

Iterative waterfilling power allocation algorithm for Gaussian interference channels is investigated. The system is formulated as a non-cooperative game. Based on the measured interference powers, the users maximize their own throughput by iteratively adjusting their power allocations. The Nash equilibrium in this game is a fixed point of such iterative… (More)

- Chi Wan Sung, Wing Shing Wong
- IEEE Trans. Wireless Communications
- 2003

The authors consider a multirate code-division multiple acess system, in which all users have the same chip rate and vary their data rate by adjusting the processing gain. The receivers are assumed to be implemented using conventional matched filters, whose performance is sensitive to the received power levels. The authors’ goal is to maximize the total… (More)

- Chi Wan Sung
- IEEE Communications Letters
- 2002

- Cho Yiu Ng, Chi Wan Sung
- IEEE Trans. Wireless Communications
- 2008

- Chi Wan Sung, Xueqing Gong
- 2013 IEEE International Symposium on Information…
- 2013

A code is said to have the MDS property if it maps K source blocks into N coded blocks, while any K out of the N coded blocks allow recovery of the original K source blocks. A new vector code that has the MDS property is designed. It allows the source blocks to be recovered by using a fast algorithm called ZigZag decoding. It can serve as the Fractional… (More)

- Chi Wan Sung, Kenneth W. Shum, Kin Kwong Leung
- IEEE Transactions on Information Theory
- 2006

The problem of power control and signature sequence adaptation in code-division multiple-access (CDMA) systems is studied under a game-theoretic framework. Each user tries to maximize his own utility function, which may be different from others. Sufficient conditions for the existence of an equilibrium point in this multi-objective optimization problem are… (More)

- Chi Wan Sung, Wing Shing Wong
- IEEE Trans. Communications
- 2001

We consider a wireless multimedia code-division multiple-access system, in which the terminals transmit at different rates. We formulate the problem as a constrained optimization problem, with the objective of maximizing the total effective rate. An optimal power control strategy is derived. When the scale of the system is large, the optimal solution takes… (More)

- Wing Ho Yuen, Roy D. Yates, Chi Wan Sung
- MSWiM
- 2003

In a mobile infostation network, any two nodes communicate when they are in proximity. Under this transmission constraint, any pair of nodes is intermittently connected as mobility shuffles the node locations. In this paper, we evaluate the effect of node mobility on highway mobile infostation networks. Each node enters a highway segment at a Poisson rate… (More)