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Results 1 - 10
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106
Efficiency and Goodput Analysis of Dly-ACK . . .
- IEEE TRANSACTIONS ON WIRELESS COMMUNICATIONS (TO APPEAR)
"... An analytical model for studying the performance of the Delayed Acknowledgement (Dly-ACK) mechanism in IEEE 802.15.3 over wireless Rayleigh fading channel is developed. A three-state Markov chain is applied to approximate the correlated transmission errors. Explicit mathematical expressions for the ..."
Abstract
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Cited by 3 (0 self)
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for the goodput and efficiency of Dly-ACK are derived. It is found that the correlation between consecutive transmissions errors has significant impact on the goodput and efficiency of the Dly-ACK mechanism. The goodput tends to increase as the size of the Dly-ACK burst increases; however, the amount of increase
Goodput Analysis and Link Adaptation for IEEE 802.11a Wireless LANs
- IEEE Trans. on Mobile Computing
, 2002
"... Abstract—Link adaptation to dynamically select the data transmission rate at a given time has been recognized as an effective way to improve the goodput performance of the IEEE 802.11 wireless local-area networks (WLANs). Recently, with the introduction of the new high-speed 802.11a physical layer ( ..."
Abstract
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Cited by 145 (11 self)
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Function (DCF), and express the expected effective goodput as a closed-form function of the data payload length, the frame retry count, the wireless channel condition, and the selected data transmission rate. Then, based on the theoretical analysis, we propose a novel MPDU (MAC Protocol Data Unit
Goodput Analysis of 3G Wireless Networks Supporting m-health Services
- Proceedings of ConTEL 2005, 8th International Conference on Telecommunications
, 2005
"... The introduction of third generation (3G) public wireless network infrastructures, such as the Universal Mobile Telecommunications System (UMTS), enable the development of innovative mobile services. For example, deploying m-health services which embed tele-monitoring and tele-treatment services bec ..."
Abstract
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Cited by 17 (9 self)
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the (derived) goodput behaviour of this 3G network. Our results show that the goodput behaviour is asymmetric and depends on a bearer assignment policy of the network. Based on our results we provide guidelines for the design of application protocols for m-health services and how these protocols deal
Goodput Analysis of a Fluid Queue with Selective Discarding and a Responsive Bursty Source
, 2003
"... In this paper we analyse a feedback system consisting of a finite buffer fluid queue and a responsive source. The source alternates between silence periods and active periods. At random epochs of times the source becomes ready to send a burst of fluid. The length of the bursts (length of the active ..."
Abstract
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Cited by 2 (0 self)
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characterization of the goodput ratio associated with such a feedback system. For the particular case of exponential distribution of on-periods we are able to obtain explicit closed form expression for the goodput ratio. Our explicit characterizations shall be quite helpful in studying the sensitivity of goodput
Cross-layer design for optimizing TCP performance
- in Proc. IEEE ICC, Seoul, Korea
, 2005
"... Abstract — In this paper, we propose and analyze novel and efficient cross-layer designs involving joint optimization of physical, link, and TCP layers in wireless. Particularly, we investigate the design of symbol mapping diversity (SMD) schemes using M-QAM at the physical layer for optimal goodput ..."
Abstract
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Cited by 7 (0 self)
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goodput performance at the TCP layer. We present the design and TCP goodput analysis of two SMD schemes, one applying SMD at the TCP packet level, termed as Full Packet SMD (FP SMD), and the other applying SMD at the link layer (LL) packet level, termed as LL ARQ SMD. We show that although the LL ARQ SMD
Network-Coding-based Adaptive Decode and Forward Cooperative Transmission in Wireless Networks: Outage Analysis
- in Proc. 13th European Wireless Conf
, 2007
"... abstract In cooperative transmission users are allowed to share antennas to transmit their messages to a common des-tination. Users employ either amplify-and-forward or decode-and-forward strategies to forward each others ’ messages. In network-coding-based cooperative transmission schemes, users ar ..."
Abstract
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Cited by 1 (1 self)
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-to-point transmission as a baseline. The work is extended to goodput analysis, based on feedback from the destination. Index Terms—Channel capacity, cooperative transmission, net-work coding, outage probability. I.
A Large-scale, Passive Analysis of End-to-End TCP Performance Over Gprs
, 2004
"... In this paper a passive methodology for TCP performance evaluation over General Packet Radio Service (GPRS) networks is presented that relies on traffic monitoring at the GPRS ingress/egress router interface (Gi). Based on the IP and TCP headers of the packets we estimate the end-to-end performance ..."
Abstract
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Cited by 41 (1 self)
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of TCP connections such as connection setup behavior and data transfer goodput. In order to identify the effects behind the measured performance the introduced algorithms estimate round trip delays, packet loss ratios, available channel rates, throughput and carry out bottleneck analysis. Large
Cross-Layer Analysis of Joint Rate and Power Adaptation in Nakagami Fading Channels with Multiple-User Contention
, 2009
"... Abstract Adaptively adjusting transmit rate and power concurrently to enhance goodput and save energy is a challenging issue in a wireless local area network (WLAN) because goodput enhancement and energy saving are usually two contradictory goals. In this paper, we propose channel-driven rate and po ..."
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Abstract Adaptively adjusting transmit rate and power concurrently to enhance goodput and save energy is a challenging issue in a wireless local area network (WLAN) because goodput enhancement and energy saving are usually two contradictory goals. In this paper, we propose channel-driven rate
Results 1 - 10
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106
