Abstract
Internet of Things (IoT) connects billions of everyday objects to the Internet. The mobility of devices can be facilitated by means of employing multiple wireless links. However, packet loss is a common phenomenon in wireless communications, where the traditional forwarding strategy undergoes severe performance issues in a multi-hop wireless network. One solution is to apply batched sparse (BATS) codes. A fundamental difference from the traditional strategy is that BATS codes require the intermediate network nodes to perform recoding, which generates recoded packets by network coding operations. Literature showed that advanced recoding schemes and burst packet loss can enhance and diminish the performance of BATS codes respectively. However, the existing protocols for BATS codes cannot handle both of them at the same time. In this paper, we propose a paradigm of protocol design for BATS codes. Our design can be applied in different layers of the network stack and it is compatible to the existing network infrastructures. The modular nature of the protocol can support different recoding techniques and different ways to handle burst packet loss. We also give some examples to demonstrate how to use the protocol.
Highlights
The Internet is no more only accessed by computers or smartphones
In addition to the batched sparse (BATS) protocol design, we propose and discuss some extensions on the existing BATS recoding schemes which make BATS codes more suitable to be applied in practical systems
BATS codes are a class of practical network coding schemes which can asymptotically achieve rates very close to the capacity of a packet network with packet loss
Summary
The Internet is no more only accessed by computers or smartphones. Billions of everyday objects like smart home devices constituent the Internet of Things (IoT). Wireless networks, including mesh and ad-hoc networks, have the important role of connecting the large number of IoT devices. The traditional network protocols designed for the Internet, for example, Transmission Control Protocol (TCP), could have poor performance for general wireless networks. To realize the full potential of IoT, it is necessary to design a more efficient network protocol that is suitable for most practical environments. The development of network coding [1,2] over the past decade have resulted in feasible network codes for this purpose, for example, batched sparse (BATS) codes [3,4,5]
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