The effects of congestion can be seen in Figure 11.1. As shown in the figure, the throughput of a connection increases as the offered load increases until a point when the queues in the system start to fill up and the increase in throughput levels off. When the offered load becomes too large and the buffers are totally filled up, packets begin to get dropped by the system and throughput starts ...

In this article, we propose a novel loss recovery algorithm of transmission control protocol (TCP) using packet transmission order, which shows a steady loss recovery ability even though packet loss rate increases. This leads to a significant throughput increase of TCP with heavy packet loss. We have verified the performance increase of the new TCP under various environments such as a wireless ...

Throughput enhancement can be achieved with two main approaches. The first one is by the increase of transmission rate and the second one is reducing the control traffic. This paper focuses on how the throughput can be enhanced by increasing Maximum Transmission Unit -MTU. Transmission of larger packets can cause a throughput improvement by reducing IP overhead. Analysis results are obtained by...

Abstract— Spatial multiplexing and diversity are in a tradeoff relationship. Multiple-input multiple-output (MIMO) can increase the maximum throughput in a good propagation environment by selecting high multiplexing order, but the achievable throughput degrades in a poor propagation environment. By adaptively selecting the multiplexing order according to the changing propagation environment, th...

Throughput fairness in 802.11 environments have been widely studied for most of the researchers. Application protocols with small packet size get lesser throughput compared to large packet size protocols. In this paper, we propose fairness mechanism with selective packet aggregation based on type of protocol. The fairness mechanism affects packets that only belong to delay insensitive protocols...

Typically, a device in an ad hoc wireless network has a tunable radio allowing it to listen or transmit on one channel at a time. To ensure maximum connectivity, all devices tune their radio to the same channel. However, as node density increases, the interference worsens, resulting in lower throughput per device. Some of the interference is unnecessary. Modern radios can often switch channels ...

The medium access control protocol of IEEE 802.11 networks has been extensively studied to explore its throughput performance. A popular regime of study is the saturation regime where users are assumed to be saturated with information bits. The throughput achieved in this regime, called the saturation throughput, is commonly interpreted as the maximum achievable throughput for any given system....

Abstract— A throughput performance significantly degrades near the cell edge due to the path loss, shadowing loss, and multipath-fading. A cooperative relay is a well-known technique to increase the cell-edge throughput. In the cooperative relay, it is expected that assigning different levels of data modulation for mobile terminal (MT) and relay station (RS) may improve the throughput performan...

Nonorthogonal Code Shift Keying Code Division Multiple Access (CSK/CDMA) ALOHA is expected to improve the throughput in advanced wireless network, such as sensor networks and ad-hoc networks. The throughput of the nonorthogonal CSK/CDMA ALOHA is expected to get better by introducing interference cancellation technique. It is not clear how much the throughput improved by introducing interference...

Sliding window convolutional networks (ConvNets) have become a popular approach to computer vision problems such as image segmentation, and object detection and localization. Here we consider the problem of inference, the application of a previously trained ConvNet, with emphasis on 3D images. Our goal is to maximize throughput, defined as average number of output voxels computed per unit time....