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We consider the problem of code acquisition at low signal to interference and noise ratio (SINR) in packet-based spread spectrum communications, where a centralized "pilot" synchronization signal and high-precision oscillators are not available. Such problems arise in the context of ad-hoc networks, for example, which require fast code acquisition times and(More)
— A low signal to interference and noise ratio (SINR) wireless environment makes successful reception and accurate detection of packets a challenging task. We can combat a low SINR by using direct-sequence spread spectrum modulation with a sufficiently high processing gain, as well as by employing block codes for FEC on each packet. In this paper, we(More)
Ability to receive signals at low signal to interference and noise ratio (SINR) improves the spatial range and reliability of wireless networks. However, it is difficult to design a communication system that operates correctly in this type of environment. Our system uses a high spreading gain in the direct-sequence spread-spectrum (DSSS) modulation to(More)
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