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A cross-layer design of packet scheduling and resource allocation based on beamforming for multiuser MIMO-OFDM systems is presented in this paper. First, we design beamforming vectors in order to convert the MIMO channels into equivalent single-input single-output (SISO) channels and choose the main SISO channel to transmit packets. Then we use a multi-strategy scheduler to schedule packets of all...
High speed downlink packet access (HSDPA) was introduced in WCDMA as an enhance technology. The objective of the major component fast packet scheduling is to ensure the fairness between users according to their instantaneous channel state. We proposed in this paper a novel packet scheduling algorithm for HSDPA which is based on QoS assurances. This algorithm is called classified wireless fair queuing...
Investigation of the multiplayer on-line game traffic is not only interesting but also important. From network point of view, accurate traffic models are highly required to generate a characteristic load for analysis or simulation approach. In this paper we focus on source modeling of the massive multiplayer on-line role playing game (MMORPG) traffic in mobile networks. Our results show that because...
From network point of view, accurate traffic analysis of the online games is proved useful in the design of mechanisms for media access, resource management, admission control, etc. Furthermore, from application point of view, in order to properly design and evaluate performance of the online games, accurate traffic models are also highly required. Therefore, in this paper we focus on performance...
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