What is the workplace location of the contributor of the Contentions analysis of MAC protocols that count publication?
California
John Heidemann is the creator of John Heidemann's 2YrMeanCitedness 1.6000000238418579102. Heidemann's alternative names are J. Heidemann and John Shelby Heidemann. Heidemann was authored by Chengjie Zhang and John S. Heidemann. John S. Heidemann is a student at the University of Southern California. He is the author of "A tool for RApid model parameterization and its applications.". Heidemann is also the author of "Kun-Chan Lan and John S. Heidemann: A tool for RApid model parameterization and its applications.".
[INST]
Utilize the provided context information, to generate answers to the following question: 
- Generate the answer to the question based on the provided context.
- Avoid including any explanations or apologies in your responses.
- Only respond to questions that ask for the answer to the target question without any additional information.
- Strictly provide the answer without any additional text.
Question: What is the workplace location of the contributor of the Contentions analysis of MAC protocols that count publication?
Context: John Heidemann is the creator of John Heidemann's 2YrMeanCitedness 1.6000000238418579102. Heidemann's alternative names are J. Heidemann and John Shelby Heidemann. Heidemann was authored by Chengjie Zhang and John S. Heidemann. John S. Heidemann is a student at the University of Southern California. He is the author of "A tool for RApid model parameterization and its applications.". Heidemann is also the author of "Kun-Chan Lan and John S. Heidemann: A tool for RApid model parameterization and its applications.".
[/INST] Answer:
