Abstract
This paper presents a novel energy-efficient and reliable connection to enhance the transmission of data over a shared medium for wireless body area networks (WBAN). We propose a novel protocol of two master nodes-based cooperative protocol. In the proposed protocol, two master nodes were considered, that is, the belt master node and the outer body master node. The master nodes work cooperatively to avoid the retransmission process by sensors due to fading and collision, reducing the bit error rate (BER), which results in a reduction of the duty cycle and average transmission power. In addition, we have also presented a mathematical model of the duty cycle with the proposed protocol for the WBAN. The results show that the proposed cooperative protocol reduced the BER by a factor of 4. The average transmission power is reduced by a factor of 0.21 and this shows the potential of the proposed technique to be used in future wearable wireless sensors and systems.
Highlights
wireless body area networks (WBAN) are communication networks of sensors placed on, inside, or perhaps around the body that represent a new generation of personal area networks and present different implementation challenges [1]–[6]
COMMUNICATION MODEL OF TMNCP The proposed protocol takes into consideration the principle of ARQ, and it works in a cooperative fashion, as follows: in the first phase, the sensor node broadcasts the data to the master nodes
ANALYSIS OF THE DUTY CYCLE AND POWER FOR Carrier Sense Multiple Access Collision Avoidance (CSMA/CA) BASED ON IEEE 802.15.6 In this subsection, we address the duty cycle (DC) and power for the traditional slave-master topology of CSMA/CA based on IEEE 802.15.6
Summary
WBAN are communication networks of sensors (and/or actuators) placed on, inside, or perhaps around the body that represent a new generation of personal area networks and present different implementation challenges [1]–[6]. B. COMMUNICATION MODEL OF TMNCP The proposed protocol takes into consideration the principle of ARQ, and it works in a cooperative fashion, as follows: in the first phase, the sensor node broadcasts the data to the master nodes (on-body nodes and outer nodes). TSleep : T: Ts : Tc : Ton : TCW : Tdata : TACK : PER: BER : α: TP : TPHY : TMAC : TBODY : TFCS : τ: Plngth : Sleep time Total time to transmit packet CSMA slot length or pCSMASlotLength Collision time, Tc = Tactive RF transceiver power-on start time Average back-off time Time to transmit a data packet Time to receive an ACK Packet Error Rate Bit Error Rate Delay time preamble time physical header time MAC header MAC frame body time frame check sequence time Transmission probability Packet length. It is observed an increase by a factor of 0.21 was achieved by our proposed protocol
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