Transmission Control Protocol (TCP) is one of the core protocols of the Internet Protocol Suite which provides reliable, ordered delivery of stream of bytes from a program on one computer to another program on another computer. TCP assumes congestion which is the primary cause of packet loss and uses congestion control mechanisms such as Tahoe, Reno and New Reno to overcome this congestion in wireless network. These TCP variants take longer time to detect and recover packet loss. In order to improve retransmission scheme, we propose a modified version of New Reno that outperforms previous TCP variants because of utilizing faster retransmission scheme as well as transferring more packets to the destination.