  In this letter, we propose a new coordinated multipoint (CoMP) technique
based on mutual information (MI) accumulation using rateless codes. Using a
stochastic geometry model for the cellular downlink, we quantify the
performance enhancements in coverage probability and rate due to MI
accumulation. By simulation and analysis, we show that MI accumulation using
rateless codes leads to remarkable improvements in coverage and rate for
general users and specific cell edge users.
