The Exploration of Network Coding in IEEE 802.15.4 Networks

Abstract

Wireless personal area networks (WPANs) are getting popular in a variety of fields such as smart home, office automation, and e-healthcare. In WPANs, most devices are considerably energy constrained, so the communication protocol should be energy efficient. The IEEE 802.15.4 is designed as a standard protocol for low power, low data rate, low complexity, and short range connections in WPANs. The standard supports allocating several numbers of collision-free guarantee time slots (GTSs) within a superframe for some time-critical transmissions. Recently, COPE was proposed as a promising network coding architecture to essentially improve the throughput of wireless networks. In this paper, we exploit the network coding technique at coordinators to improve energy efficiency of the WPAN. Some related practical issues, such as GTS allocation and multicast, are also discussed in order to exploit the network coding opportunities efficiently. Since the coding opportunities are mostly exploited, our proposal achieves both higher energy efficiency and throughput performance than the original IEEE 802.15.4.

Experimental assessment of using network coding and cooperative diversity techniques in IEEE 802.15.4 wireless sensor networks

“…In [10] was proposed the use of network coding in messages sent in reserved slots (Guaranteed Time Slot -GTS) of IEEE 802.15.4 networks, improving the energy efficiency of the network.…”

“…node in the network do10 Overhears the messages from neighbours, encodes them,11 Waits its reserved slot and transmits the coded message 12 end 13 Coordinator receives messages from nodes and from relay nodes, 14 Solves the linear system, 15 Estimates the network PER and the values of node's RSSI 16 end Algorithm 1: Overview of transmission algorithm.…”

A WSN data retransmission mechanism based on network coding and cooperative relayers

“…In [7], it is proposed the use of NC for the setting-up of Guaranteed Time Slot (GTS) in IEEE 802.15.4 networks. The proposed approach improves the throughput and the power consumption efficiency of the network.…”

“…In comparison with [7], the proposed NetCoDer scheme adds cooperative nodes to efficiently retransmit data. The NetCoDer proposal also selects best relay nodes, similarly to [8].…”

Light-weight Security Architecture for IEEE 802. 15. 4 Body Area Networks

“…IEEE 802.15.4 standard for the low-rate wireless personal area network (LR-WPAN) is having low complexity, ultra low power consumption, and low data rate wireless connectivity in the fixed, inexpensive, portable, and moving devices which has no devices to operate [1]. It is formed by the WPAN working group that specifies the physical layer and the medium access control (MAC) layer protocol for the low-rate (LR-WPANs) [2].LR-WPAN uses two kinds of devices defined by the IEEE 802.15.4 standard. They are the full function device (FFD) and the reduced function devices (RFD).The full function devices (FFD) are those in which all IEEE 802.15.4 functions and features specified by the standard are present.…”