Yes however, you need to make sure that wireless newtork meets the PCI requirements. Listed below are some current and future requirements.
PCI Req: 2.1.1
PCI DSS Requirement: For wireless environments connected to the cardholder data environment or transmitting cardholder data, change wireless vendor defaults, including but not limited to default wireless encryption keys, passwords, and SNMP community strings. Ensure wireless device security settings are enabled for strong encryption technology for authentication and transmission.
PCI Req: 4.1.1
PCI DSS Requirement: Ensure wireless networks transmitting cardholder data or connected to the cardholder data environment, use industry best practices (for example, IEEE 802.11i) to implement strong encryption for authentication and transmission.
For new wireless implementations, it is prohibited to implement WEP after March 31, 2009.
For current wireless implementations, it is prohibited to use WEP after June 30, 2010.