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In this paper, the authors introduce a new modulation scheme called Spiral QAM, which is optimized for phase noise, and thus robust in the presence of phase noise. Symbol mapping rules for 16 and 64 Spiral QAM are also presented. SER and BER performance of 64 Spiral QAM was compared with the conventional 64 QAM to show the superior performance of Spiral QAM in the presence of phase noise. To meet the ever growing demands for wireless multimedia services, modern wireless communication systems should achieve technical goals often conflicting with one another such as providing high rate data transmission with sophisticated QoS (Quality of Service) provisioning over hostile wireless links.
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