  Cellular phones, wireless laptops, personal portable devices that supports
both voice and data access are all examples of communicating devices that uses
wireless communication. Sine TCP/IP (and UDP) is the dominant technology in use
in the internet, it is expected that they will be used (and they are currently)
over wireless connections. In this paper, we investigate the performance of the
TCP (and UDP) over IEEE802.11 wireless MAC protocol. We investigate the
performance of the TCP and UDP assuming three different traffic patterns. First
bulk transmission where the main concern is the throughput. Second real-time
audio (using UDP) in the existence of bulk TCP transmission where the main
concern is the packet loss for audio traffic. Finally web traffic where the
main concern is the response time. We also investigate the effect of using
forward Error Correction (FEC) technique and the MAC sublayer parameters on the
throughput and response time.
