Different Characteristics of Radio Modules in Wireless Body Sensor Network Systems

Abstract

Abstract. Wireless body sensor network systems (WB-SNSs) can use diverse radio modules. However, previous studies did not consider different characteristics of radio modules, which deeply impact the performance of WBSNSs.In this paper, we analyze the performance of WB-SNSs using the representative radio modules CC2420 and CC1000. In this environment, we collected log data from real sensor devices deployed on the human body. After log data collection, we first show that CC2420 and CC1000 have different radio characteristics from diverse views, such as the received signal strength indication (RSSI) average and deviation, transmission power levels, and body movement. Through the analysis, we also find that an efficient transmission power control (TPC) algorithm should consider these diverse factors due to different radio modules.

An Acceleration-based Packet Transmission Mechanism for Wireless Sensor Systems

“…Diverse studies aimed at overcoming changes to wireless channel signals due to the location of sensors and users' movements in a WBSS have been conducted [1][2]. Among them, research on a TPC mechanism is a representative research on increasing energy efficiency.…”

Concept of Packet Transmission Delay Mechanism for Wireless Sensor Systems

“…Studies aimed at overcoming wireless signals oscillating and becoming smaller due to the locations of sensors and the user's movements in wireless body sensors have been conducted [1] [2].Among them, studies of transmit power control (TPC) algorithms are representative studies to increase energy efficiency. [3] explains the content of existingreceived signal strength indicator (RSSI) control.…”

Channel Analysis Based on Received Signal Strength in Wireless Body Sensor Network Systems

“…Many studies have analyzed dynamic WBSN environments [5][6][7][8]. Qi [5] analyzed he accuracy, latency, and battery life in a WBSN.…”

“…The experiments conducted by Qi and Lee used a CC2420 radio chip. However, the frequency, transmission power control level, output power range, and supply voltage [7] of the CC2420 chip differs from those of the CC1000 module. Therefore, it is necessary to analyze dynamic WBSN channel links using a CC1000 module.…”