MOCZ - A novel noncoherent modulation scheme

Abstract

The future generation of wireless networks faces a diversity of new challenges. Trends on the horizon – such as the emergence of the Internet of Things (IoT) and the tactile Internet – have radically changed our thinking about how to scale the wireless infrastructure. Among the main challenges new emerging technologies have to cope with is the support of a massive number (billions) of devices ranging from powerful smartphones and tablet computers to small and low-cost sensor nodes. These devices come with diverse and even contradicting types of traffic including high speed cellular links, device-to-device connections, and wireless links carrying short-packet sensor data. Short messages of sporadic nature will dominate in the future and the conventional cellular and centrally-managed wireless network infrastructure will not be flexible enough to keep pace with these demands. Although intensively discussed in the research community, the most fundamental question here on how we will communicate in the near future under such diverse requirements remains largely unresolved. A key problem is how to acquire, communicate, and process channel information. Conventional channel estimation procedures require a substantial amount of resources and overhead. This overhead can dominate the intended information exchange when the message is short and the traffic sporadic. Noncoherent and blind strategies, provide a potential way out of this dilemma. Classical approaches like blind equalization have been already investigated in the engineering literature, but new noncoherent modulation ideas which explicitly account for the short-message and sporadic type of data are required.

external website

Related Publications

1. Philipp Walk, Peter Jung, Babak Hassibi and Hamid Jafarkhani, “MOCZ for Blind Short-Packet Communication: Practical Aspects,” IEEE Transactions on Wireless Communications, vol. 19, no. 10, pp. 6675-6692, feb 2020.
   [bibtex] [url]

   @article{Walk:TWC:MOCZ:practicalaspects,
     author = {Walk, Philipp and Jung, Peter and Hassibi, Babak and Jafarkhani, Hamid},
     title = {MOCZ for Blind Short-Packet Communication: Practical Aspects},
     journal = {IEEE Transactions on Wireless Communications},
     year = {2020},
     volume = {19},
     number = {10},
     pages = {6675--6692},
     url = {https://ieeexplore.ieee.org/document/9141440/},
     doi = {https://doi.org/10.1109/twc.2020.3004588}
   }
   

2. Philipp Walk, Peter Jung and Babak Hassibi, “MOCZ for Blind Short-Packet Communication: Basic Principles,” IEEE Transactions on Wireless Communications, vol. 18, no. 11, pp. 5080-5097, nov 2019.
   [bibtex] [url]

   @article{Walk:TWC:MOCZ:basicprinciples,
     author = {Walk, Philipp and Jung, Peter and Hassibi, Babak},
     title = {MOCZ for Blind Short-Packet Communication: Basic Principles},
     journal = {IEEE Transactions on Wireless Communications},
     year = {2019},
     volume = {18},
     number = {11},
     pages = {5080--5097},
     url = {https://ieeexplore.ieee.org/document/8792390/},
     doi = {https://doi.org/10.1109/TWC.2019.2932668}
   }
   

3. Philipp Walk, Peter Jung and Babak Hassibi, “Noncoherent Short-Packet Communication via Modulation on Conjugated Zeros,” may 2018.
   [bibtex] [url]

   @article{Walk:mocz:preprint,
     author = {Walk, Philipp and Jung, Peter and Hassibi, Babak},
     title = {Noncoherent Short-Packet Communication via Modulation on Conjugated Zeros},
     year = {2018},
     url = {http://arxiv.org/abs/1805.07876}
   }