K-user degraded broadcast channel with secrecy outside a bounded range

Shaofeng Zou, Yingbin Liang, Lifeng Lai, H. Vincent Poor, Shlomo Shamai

نتاج البحث: فصل من :كتاب / تقرير / مؤتمرمنشور من مؤتمرمراجعة النظراء

ملخص

A K-receiver degraded broadcast channel with secrecy outside a bounded range is studied, in which a transmitter sends K messages respectively to K receivers, and the channel quality gradually degrades from receiver K to receiver 1. Each receiver k is required to decode messages W1, Wk, for 1 ≤ k ≤ K. Furthermore, each message Wk should be kept secure from receivers with two-level worse channel quality, i.e., receivers 1,., k-2. The secrecy capacity region is fully characterized. The achievable scheme designates one superposition layer to each message with random binning employed for each layer for protecting all upper-layer messages from lower-layer receivers. Furthermore, the scheme allows adjacent layers to share rates so that part of the rate of each message can potentially be shared with its immediate upper-layer message to enlarge the rate region. More importantly, an induction approach is developed to perform Fourier-Motzkin elimination over 2K variables among Θ(K2) bounds to obtain a close-form achievable rate region. A converse proof is developed that matches the achievable rate region, which involves recursive construction of the rate bounds.

اللغة الأصليةالإنجليزيّة
عنوان منشور المضيف2016 IEEE Information Theory Workshop, ITW 2016
الصفحات31-35
عدد الصفحات5
رقم المعيار الدولي للكتب (الإلكتروني)9781509010905
المعرِّفات الرقمية للأشياء
حالة النشرنُشِر - 21 أكتوبر 2016
الحدث2016 IEEE Information Theory Workshop, ITW 2016 - Cambridge, بريطانيا
المدة: ١١ سبتمبر ٢٠١٦١٤ سبتمبر ٢٠١٦

سلسلة المنشورات

الاسم2016 IEEE Information Theory Workshop, ITW 2016

!!Conference

!!Conference2016 IEEE Information Theory Workshop, ITW 2016
الدولة/الإقليمبريطانيا
المدينةCambridge
المدة١١/٠٩/١٦١٤/٠٩/١٦

All Science Journal Classification (ASJC) codes

  • !!Computer Networks and Communications
  • !!Information Systems
  • !!Software
  • !!Signal Processing

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