Multi-carrier CDMA technology is a very attractive multiple access technique for next generation wireless communication systems. It combines the advantages of both Orthogonal Frequency Division Multiplexing (OFDM) and Code Division Multiple Access (CDMA) for high data rate transmission. However, interference noise is considered as a major challenge for MC-CDMA systems and significantly affects ...

Pilot power allocation for Internet of Things (IoT) devices in massive multi-input multioutput heterogeneous wireless sensor networks (MIMO-HWSN) is studied this paper. The interference caused by fractional pilot reusing adjacent cells had a negative effect on the MIMO-HWSN system performance. Reasonable users can effectively weaken interference. Motivated water-filling algorithm, we proposed s...

In this paper, the concept of MIMO is integrated with the existing cognitive radio network to enhance the communication utility of the secondary user. Water filling algorithm based power control is proposed to improve the transmission capacity of the cognitive system without degrading the primary user’s quality of service. Considering the interference constraint of the primary user, an optimal ...

A fuzzy control scheme is proposed for the system of filling and draining off water of the rubber dam(FDWRD) which is a typical nonlinear, multivariables, timevarying and strong coupling control system base on traditional PID control or model-based control methods can not meet its constant flow sufficient drainage control requirements, during to it couldn‘t be established accurate mathematical ...

Dynamic multi-resource fair allocation has been a hot topic for fair division. Most recently, Kash, Procaccia and Shah (Journal of Articial Intelligence Research 51: 579-603, 2014) proposed a dynamic dominant resource fairness (DRF) mechanism, and designed a water-filling algorithm to find a dynamic DRF solution. However, the running time of water-filling algorithm is pseudo-polynomial. In this...

This paper considers the multiuser power control problem in a frequency-selective interference channel. The interference channel is modeled as a noncooperative game, and the existence and uniqueness of a Nash equilibrium are established for a two-player version of the game. An iterative water-filling algorithm is proposed to efficiently reach the Nash equilibrium. The iterative water-filling al...

In this paper we use game theoretic techniques to study the value of cooperation in distributed spectrum management problems. We show that the celebrated iterative water-filling algorithm is subject to the prisoner’s dilemma and therefore can lead to severe degradation of the achievable rate region in an interference channel environment. We also provide thorough analysis of a simple two bands n...

This paper focuses on the development of a new resource allocation scheme for video streaming in wireless networks. The technique utilizes the 2-weak burstiness curve which has been defined as the (1− 2)-percentile of the maximum burstiness curve. We show that the 2-weak burstiness curve is a convex non-increasing function of the service rate. We also devise a “water-filling” algorithm to obtai...

In this paper we present a novel technique for resource allocation in Multiuser Orthogonal Frequency Division Multiplexing (MU-OFDM) Systems with proportional rate constraint. The subcarrier allocation is tackled using a novel algorithm which combines the aspects of both deterministic and genetic algorithms (GA). For the calculated subcarrier allocation, bit-loading is done using the standard W...