Chapter 4. Data Links and Transmission
So far, we have discussed basic networking protocols and devices. This chapter focuses on data links, especially on methods of data transmission, both wired and wireless. After introducing general properties of transmission media, we investigate issues in the link layer of the overall protocol stack. The highlights of this chapter are
• Wired links and transmission
• Wireless links and transmission
• Methods of channel access on links
• Error detection and correction
• Flow control at the link layer
We begin by discussing wired and wireless transmission media. We examine most guided and unguided link alternatives, briefly discuss their applications, and summarize key transmission characteristics. ...
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