Title :
Transmission performance of wireless sensor networks in the presence of co-channel interference
Author :
Jin-Seok Han ; Jae-Seok Bang ; Yong-Hwan Lee
Author_Institution :
Sch. of Electr. Eng. & INMC, Seoul Nat. Univ., Seoul, South Korea
Abstract :
Wireless sensor networks operating in 2.4 GHz ISM band are seriously affected by interference from coexisting radio systems such as IEEE 802.11× wireless local area networks. In this paper, we investigate the transmission performance of wireless sensor networks in the presence of co-channel interference. We first analyze the probability of transmission failure and data throughput associated with transmission schemes in interference environments. The transmission schemes are modeled using a Markov chain taking into account the detection probability of channel sensing detector and the interference channel characteristics. Then, we determine the packet size to maximize the data throughput in the presence of co-channel interference. It is shown that the data throughput and energy consumption are affected by the packet size, data transmission rate, data transmission scheme, detection probability of channel sensing detector, and interference channel characteristics.
Keywords :
Markov processes; cochannel interference; probability; wireless sensor networks; ISM band; Markov chain; channel sensing detector; cochannel interference; coexisting radio systems; data throughput; data transmission rate; data transmission scheme; detection probability; energy consumption; frequency 2.4 GHz; interference channel characteristics; interference environments; packet size; transmission failure probability; transmission performance; transmission schemes; wireless sensor networks; Data communication; Interference; Sensors; Throughput; Transmitters; Wireless LAN; Wireless sensor networks;
Conference_Titel :
Wireless Communications and Networking Conference (WCNC), 2014 IEEE
Conference_Location :
Istanbul
DOI :
10.1109/WCNC.2014.6952569
